1. A primitive variable type in most programming languages; can be true or false
2. Because undeclared bool variables usually default to false: A word used as an antonym for cool; As in not cool; can be used as a noun for an imaginary substance of very uncoolness.
Not gonna lie, that movie was really bool.

What a load of boolshit!

Holy buckets of bool! That hurt!

Don't drown in a pool of your own bool.
by One Bard October 12, 2009

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Poo balls. The resulting effect of buttbagging. (See buttbagging.) Used as an adverb or an adjective.
You are bools.
by Capt. Bools December 07, 2008

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Bored and cool
I am just kicking back and being bool
by ron mullen July 04, 2015

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A bitch and a fool combined
Taylor is such a bool.
by Joe54783 January 25, 2010

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It basicaly is cool, but the begining letter is the letter before it in the alphebetical order. Instead of c, its b. Much like drunk, and crunk. It is very much the same. The Bloods most definitely didn't start it.
I played this bool game last night, when i was crunk and had a hard-on.
by Scott Richard October 21, 2005

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Period blood from a human female experiencing her menstrual cycle; usually of the dried (unfresh) variety. Generally has a brownish coloration.
"Awwww nigga you got bool all ova ya pant leg, what kinda nasty ass chick you been bangin'?"
by Uncle Tom Foolery August 08, 2008

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1) Chill out and get high

2) Hang out for a while
Yo you tryna bool right now? Let's go bool at Antonios house..
by ranoxan November 17, 2016

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