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1. interjection, slang Used to express that something is acceptable or satisfactory. A: "I'll give you a call in the morning." B: "Cool." A: "Do you want to have pizza for dinner tonight?" B: "Yeah, cool."
2. adjective, slang Sophisticated, fashionable, or knowledgeable of the latest trends. I never hung out with any of the so-called "cool kids" in school. I had way more in common with the kids in band and computer club. Ugh, I hate it when my parents try to act all cool. Like, you're not teenagers—stop pretending to be! We dated for a while, but I always felt like she was way too cool for me.
3. adjective, informal Calm, composed, or unflustered. You've got to stay cool when the boss comes in. Don't let him see that anything is wrong! She was so cool when she made the request that I didn't think anything of it at the time.
4. adjective, slang Very exciting or interesting. Hollywood has always made guns seem cool. A: "I just booked a flight to Paris!" B: "Wow, that's so cool! When are you going?" It was pretty cool getting to see New York City from the inside of a helicopter.
5. adjective, slang Not a problem. A: "I'm sorry for what I said earlier." B: "It's cool, man. Don't worry about it."
6. adjective, slang Unqualified or unexaggerated. I made a cool two million playing the stock markets last year.
7. noun, informal A calm composure or temper. I tried to keep my cool when the famous actor came into my store. He really lost his cool when the waiter dropped his food.
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.


1. mod. unabashed; unruffled; relaxed. (see also keep one’s cool, lose one’s cool.) She is totally cool and easygoing.
2. mod. good; excellent. This is a really cool setup!
3. mod. [of music] mellow; smooth. This stuff is so cool, I’m just floating.
4. mod. no less than [some amount of money]. She cleared a cool forty thousand on the Wilson deal.
5. in. to die; to become cold after death. (Medical euphemism.) We were afraid that he would cool.


n. jail. (Usually with the.) Do you want to talk, or do you want to spend a little time in the cooler?
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.


Stylish, fashionable, clever. This slangy term expressing admiration dates from the early 1900s as an adjective and was popularized by black jazz musicians from the late 1940s. As an interjection it was then taken up by teenagers and then by the general population. Describing the plan for an assassination, a character in James Patterson’s London Bridges (2004) exclaimed, “Not only is this smart, it is cool as hell.”
The Dictionary of Clichés by Christine Ammer Copyright © 2013 by Christine Ammer
References in periodicals archive ?
16.2M * PHOTO ESSAYS AWARD OF MERIT Entry: Coolness Under Fire Winner: Terry Lowenthal Bechtel Group, Inc.
New Delhi [India], Jan 16 ( ANI ): Actor Ranveer Singh on Wednesday posted a picture with the original 'Gully Boy' Naved Shaikh aka Naezy and has officially raised the coolness quotient up by a notch.
The Mint Chocolate Chip combines the coolness of mint with chocolate chips.
In a further effort to make coolness a liability, the conservative group American Crossroads released a Web video that shows the president sporting shades and dancing with Ellen DeGeneres.
These stand against three different backgrounds--yellow, cyan, and magenta--which imbue the images with a glamour that contrasts with the silent coolness of the objects.
But I am starting to wonder whether I might be able to at least acquire passive coolness by standing next to some smokers and breathing in their second-hand smoke.
But for the most part, van Manen strips away ornamentation, creating a sense of spareness and coolness. The work unfolds in a deliberate, almost geometric fashion, with the choreographer articulating each individual movement.
Her laid-back grooves and smooth vocal style invite you to sit back, close your eyes, tap your foot, and drink in the coolness.
Some users really like the coolness of being seen wearing an iPod.'
When they received their awards from Michael Hurdle, the High Sheriff of Staffordshire, Judge John Shand told them: 'You both showed great courage and coolness.' Earlier this year, David McAffrey (27), of no fixed address, was jailed for eight years for burglary and assault.
This was always supposed to indicate diffident coolness, but I believed it showed a psychological distancing, as though the owners didn't have the confidence to call whatever they were doing by some proud name, like, say, the owners of the National Biscuit Company once did.
And he insisted that his daughter Stella gets on fine with his bride-to-be, Heather Mills despite rumours of a coolness.
Outside again, under the heat and intense light, the shade and coolness of the modern cave of mysteries becomes a memory.
Bill Russell, perhaps the greatest defensive player of all time, bristles at the thought that his superlative ability to physically and mentally intimidate his opponents and maintain his coolness and concentration despite distractions, were innate.