Phrase used by assholes who couldn't care less about what you're saying.
Chick: I'm so upset, hurt and I can't stop crying. I can't believe you don't want to be friends with me anymore.

Asshole: That's cool!
by cynicalprozak89 January 24, 2015
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someone who receives the respect of others
Craig is cooler than Rachael no matter what. NO MATTER WHAT
by Rawrawrarww July 10, 2008
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American now global slang, 1950s-present
adj.
1) superior, desirable, worthy of approval
2) in or beyond the current style; in harmony with an ineffable sophistication
3) graceful despite pressure
4) relaxed, calm, low-key, mellow
5) agreeable
6) trustworthy; not a narc
7) under self-control, despite appearances
8) reconciled
9) above and beyond a situation
10) characterized by strange masteries and hidden resources

verb.
1) ~ it. Stop overreacting.
2) ~ him. Subtly check one's luck or progress.
Adj.
1) "My new skirt is so cool!"
2) "SF is a cool city." "Miles Davis was a cool dude."
3) "When the cops came, he was cool."
4) "Nothing bothers him. He's always cool."
5) "Cool! I'll start tomorrow."
6) "I can't believe you fired up in front
of him."
"No, man, he's cool."
7) "It's OK, man. I'm cool."
8) "Are we cool, man?" "Yeah, we're cool."
9) "Nah, I'm too cool for school."
10) "When he disappeared like that, that was so cool!"

Verb.
1) "Hey man! Put that gun down and cool it!"
2) "Send Joe over there to cool him."
by Tom Cool October 08, 2005
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When you have nothing else to reply and you don't really give a crap about what the person is saying.
Person 1 -''Yeah OMG I just went shopping ''
Person 2 ''Yeah , cool .'''
by TheLettersYouWrote March 23, 2016
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An expression on how something is... well, not cool. Very similar to the following expression: gay, retarded, lame, etc.
"Dude, you got drunk and danced naked in the middle of the freeway while singing "Jingle Bells" in Spanish?!"

"Dude, I know. Totally not cool."
_ _ _ _

Not cool situation: When you get an "F" on your math test because you studied the wrong chapter... three minutes prior to the test ^_^
_ _ _ _

*Bitch slap* <---- Not cool.
_ _ _ _

Boyfriend: "I have something to tell you..."
Girlfriend: "You love me? =)"
Boyfriend: "Uh, I'm gay."
Girlfriend: "What? NOT AGAIN! This is SO not cool"
by Psych! November 27, 2005
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laid back, relaxed, not freaked out, knows what's goin on.

has come to mean anything popular
"that's one cool cat."

"wow, that good charlotte (cough*sucks*cough) cd is cool!"
by ophelia November 29, 2003
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