Coo is when you have very big pp energy. It’s like cool excepts better. The effect of the word is increased if your name starts with an L.
“Man that guy is so coo, I wish I were him”
by Coo_Luis August 19, 2019
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A way to describe yourself as being incredibly awesome.
by Excelide August 19, 2019
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A shortened more lazy version of the word "cool". Used when it takes too much effort to pronounce the "l".
Aw, fo real? That's coo.
by Sylvia April 27, 2004
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1. Coo (Verb) - A complete state of relaxation and tranquility often aided by the use of marijuana.

2. Coo(ing)(Verb) - to be in the state of "coo"

3. Coo(ed) (Verb) - When coo is broken by inconsiderate fucks, due to the lack of understanding and appreciation by "non-cooers"
1. "Rahh lecture was long, man needs to coo."

2. "Man cant stop cooing, Jah bless"

3. "I'm all cooed out" (physically impossible)
by JakeKitch January 27, 2011
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The sound that some of the biggest "smaller" birds make, better known as pigeons. Usually hanging around parks and within downtown areas of large cities, these pigeons make a characteristic "cooing" sound.
Me: Look over there! Pigeons!
Pigeon: Cooo.....Coo....
by Mike Rotch March 24, 2005
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Like cool but without the last letter. Used in the place of cool.
Man that movie was totally coo

<Woman> Lets Get Naked
<Man> Ok, coo
by Gruce McKenzie April 15, 2004
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