Fascinating backstories of phrases

Ten common English idioms and their surprising origins


Published on November 28, 2025


Image: Amador Loureiro

Ever wondered why we "spill the beans" when we reveal secrets, or why something costs "an arm and a leg"? Our everyday expressions carry hidden tales of history, culture, and human nature. Let's dive into ten familiar idioms and discover the surprising stories behind the words we use so casually.

1

Break the Ice

Image: Christian Regg

When you "break the ice" at a party or meeting, you're helping people feel more comfortable and start conversations. This perfectly sensible expression actually comes from a very literal practice. In the days before modern icebreakers, ships would get trapped in frozen harbors during the winter months, unable to move until smaller boats physically broke through the ice to create a clear path.

The phrase made its way into social situations because starting a conversation in an awkward silence feels just as challenging as breaking through solid ice. Shakespeare even used this expression in "The Taming of the Shrew" back in 1590, proving that people have been struggling with small talk for centuries.

2

Spill the Beans

Image: Miles Burke

"Spilling the beans" means revealing a secret or letting information slip out accidentally. Historians suggest this idiom may have originated in ancient Greece, where voting was serious business. Citizens would cast their votes using beans. White beans meant "yes," and black beans meant "no." The beans were supposed to be counted privately, but sometimes a clumsy voter would knock over the jar and literally spill the beans, revealing the secret vote.

3

Cost an Arm and a Leg

Image: Alexander Mils

When something "costs an arm and a leg," it's extremely expensive –so much so that you'd have to give up precious body parts to afford it. While this sounds like modern exaggeration, some theories suggest that the phrase comes from the world of portrait painting in the 18th and 19th centuries. Back then, having your portrait painted was a luxury, and artists charged based on how much of your body was included in the painting.

A simple head-and-shoulders portrait was the basic package, but if you wanted your arms and legs painted too, the price went way up. So literally, including arms and legs in your portrait cost extra arms and legs!

4

Bite the Bullet

Image: Bennie Bates

"Biting the bullet" means facing a difficult situation with courage, usually something unpleasant you can't avoid. This grim expression comes from battlefield medicine in the days before anesthesia. When soldiers needed surgery or had to endure painful medical procedures, doctors would give them a bullet to bite down on to help them cope with the pain and prevent them from biting their own tongues.

The lead bullet was soft enough not to break their teeth but firm enough to give them something to focus on during the agony.

5

Let the Cat Out of the Bag

Image: Mikhail Vasilyev

"Letting the cat out of the bag" means revealing a secret or surprise, usually by accident. Legend has it that this phrase comes from medieval marketplaces, where dishonest merchants had a sneaky trick for cheating customers. When someone wanted to buy a pig, the merchant would show them a nice, plump pig, then put what the customer thought was that pig into a bag for transport. But instead of the pig, they'd slip in a much cheaper cat.

The fraud was only discovered when the buyer got home and literally let the cat out of the bag. The cat was definitely out then, along with the secret of the merchant's deception! This medieval scam was so common that buyers learned to insist on seeing inside the bag before paying.

6

The Whole Nine Yards

Image: Welcome

When you go "the whole nine yards," you're doing everything possible, giving maximum effort, or including everything available. Despite being such a common phrase, its origin is hotly debated. One popular theory involves World War II fighter pilots, whose ammunition belts were exactly nine yards long. When a pilot used up all their ammo in a fight, they had given it "the whole nine yards."

Other theories include fabric merchants selling nine-yard bolts of cloth, or concrete trucks carrying nine cubic yards of concrete. The truth is, nobody knows for sure, and that mystery makes the phrase even more interesting. What we do know is that nine yards seems to represent completeness in American culture.

7

Don't Look a Gift Horse in the Mouth

Image: Phil hearing

This awkward-sounding advice means you shouldn't be overly critical of something you're getting for free. The saying comes from the practical world of horse trading, where a horse's age and health could be determined by examining its teeth and gums. Younger horses have better teeth, making them more valuable, while older horses show wear and problems that reduce their worth.

When someone gave you a horse as a gift, it would be incredibly rude to immediately check its mouth to see if you were getting a good deal. You'd essentially be questioning the giver's generosity and looking for reasons to complain about your free horse.

8

Mad as a Hatter

Image: Paolo Nicolello

Calling someone "mad as a hatter" means they're acting crazy or irrational. This isn't just a random comparison. Hat makers really did go mad, and there was a tragic reason for it. In the 18th and 19th centuries, hat makers used mercury in the process of turning animal fur into felt. Mercury is highly toxic, and prolonged exposure caused mercury poisoning, which led to tremors, mood swings, and erratic behavior.

Hat makers would develop what we now know were symptoms of mercury poisoning: Twitching, slurred speech, and personality changes that made them seem insane. The phrase became so common that Lewis Carroll used it when creating the Mad Hatter character in "Alice's Adventures in Wonderland."

9

Saved by the Bell

Image: Mrg Simon

Being "saved by the bell" means being rescued from a difficult situation by a last-minute interruption, like when the school bell rings just as the teacher is about to call on you. While many people think this comes from boxing, where a boxer about to be knocked out gets saved when the round ends, the phrase might have an even more dramatic origin story involving the fear of being buried alive.

In the 18th and 19th centuries, people were terrified of being mistaken for dead and buried while still alive. Some coffins were equipped with bells connected to strings that ran down into the grave. If someone woke up buried, they could pull the string and ring the bell to alert the graveyard workers.

10

It's Raining Cats and Dogs

Image: Roman Ten

When it's "raining cats and dogs," we mean it's pouring heavily. This bizarre expression has several possible origins, all of them rather unpleasant. One theory suggests that in medieval times, city drainage was so poor that heavy rains would wash dead animals through the streets, making it look like cats and dogs had fallen from the sky. Not exactly a pleasant mental image for your morning weather report.

Another theory points to old English, when thatched roofs provided shelter for small animals. During heavy storms, these creatures would supposedly fall through the soaked thatch into people's homes. While this sounds more like folklore than fact, it captures the chaos and surprise of a sudden downpour.


Trimming our vocabulary

10 words in English that used to be longer


Published on November 28, 2025


Image: Megan Watson

Have you ever wondered why we say ‘fab’ for fabulous, or ‘uni’ for university? A natural characteristic of most languages is that speakers, even if they don't realize it, try to say the most amount of things with the least amount of words possible. This can be done in many ways, including by shortening the word to its smallest form. While in some cases the short and the long versions are used at the same time, many terms that we don’t think twice about actually have a longer version. Keep on reading to discover the original form of these everyday words.

1

Pub

Image: Amie Johnson

Public establishments dedicated to selling alcohol are as old as time and have gone by several names over the centuries. In English, taverns, alehouses, and inns existed way before the word ‘pub’ was in use. Where did it come from, then? In the 17th century, the term ‘public house’ began to be used to distinguish these establishments from private houses and residences, and the shortened version of ‘pub’ was registered for the first time in 1859.

2

Bus

Image: CHUTTERSNAP

Buses weren't always machines. The first recorded bus dates back to 1823 in Nantes, France, where a horse-drawn carriage service transported passengers to the public baths. The service was called Omnes Omnibus, Latin for ‘everything for everyone’. The omnibus part remained and was adopted into English to refer to public transport, later shortened to ‘bus’.

3

Fridge

Image: nrd

While we still use the full word ‘refrigerator’ in English, ‘fridge’ is now a word in its own right. But how did it get to that form? As modern refrigerators became increasingly more common in the 20th century, people started shortening their name to ‘frig’, but this form sounded harsher than the original. To capture the sound of the g in ‘refrigerator’, writers started writing the word as ‘fridge’, mirroring the spelling of words like ‘bridge’ or ‘lodge’.

4

Soccer

Image: Emilio Garcia

Many think that Americans use the term soccer because a sport named football was already popular in the U.S., and they are only half right. Originally, there were several sports named football: Rugby football (now, just rugby), Association football (soccer), and Gridiron football (football). In the late 19th century, English students started shortening Association football to ‘assoc’ and then to ‘soccer’, a name that became popular and coexisted with the term ‘football’ for a long time. While ultimately ‘football’ became the more widespread term for the sport, in America, due to the popularity of Gridiron football, the name ‘soccer’ remained.

5

Perk

Image: Markus Winkler

The word ‘perk’ has many meanings, but not all are a shortened version of another word. The word ‘perquisite’ comes from the Latin perquisitum, meaning ‘something carefully sought or acquired’. In the 19th century, it was shortened to ‘perk’, which has now evolved to mean a benefit or an extra, usually related to a job or salary.

6

Miss

Image: Christopher Campbell

While ‘mistress’ often has a negative connotation in modern English, this was not always the case. Originally, ‘mistress’ was the feminine version of ‘master’, as in ‘the head of a household’. Around the 1600s, it was shortened to ‘miss’, and both ‘mistress’ and ‘miss’ were used for the lady of the house. Eventually, ‘miss’ came to be used for young, unmarried ladies, while ‘mistress’ evolved into ‘Mrs’ (pronounced missus).

7

Cute

Image: Jonatan Pie

Have you ever heard the word ‘acute’ used to describe a sharp pain or a sharp-witted person? Believe it or not, it is related to the word we use to talk about charming and pretty things and people. While acute —and its shortened version, ‘cute’— originally meant ‘perceptive’ or ‘sharp’, it became a slang word for clever, fetching, or pretty things in the 19th century. Eventually, the meaning broadened to include physical appearances.

8

Girl

Image: Leo Rivas

Middle English had many gender neutral terms to refer to people —think ‘child’ or ‘sibling’, for example— and ‘girl’ was one of these terms. Originally gyrle or girle, it was used to describe any small child, regardless of their sex, and adjectives were added to specify if it was male or female. Around the 15th and 16th centuries, the meaning shifted to refer to young females, while also becoming an affectionate term for women of all ages.

9

Taxi and Cab

Image: Waldemar Brandt

‘Taxi’ and ‘cab’ are used interchangeably for a vehicle with a hired driver, and many people have at least once heard the term ‘taxicab’, now practically obsolete. But what if we tell you that taxicab is not the original term either? A taximeter (a mix of taxa, ‘charge’, and metron, ‘measure’) was an instrument used to measure and determine a fare, while a cabriolet was a light, horse-drawn carriage. The first automatic taximeter was invented in Germany in 1891, and attached to horse carriages and later to automobiles. These vehicles were initially called taximeter cabs, then taxicabs, and ultimately just taxis or cabs.

10

Prom

Image: Shayna Douglas

Ask any high school student, and most of them will agree that prom is a major rite of passage of adolescence. This tradition is derived from high society formal dances that gave young people the opportunity to practice their social skills and make acquaintances. But what does ‘prom’ mean? The original term is ‘promenade’, a word you may recognize in relation to walkways and avenues, a French term used for a leisurely walk or stroll. In high society events, ‘promenade’ was used for the initial formal parade of the guests, which gave them the chance to show off their attire. Eventually, it came to refer to the event itself.

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