coo 

A slightly shortened version of "cool"
used by only the cooest people, coo is the best way to describe something that is completely awesome.

urbandictionary.com is the cooest website i visit daily.
i have such a coo life.

coo by cooest XD July 13, 2010

Coo 

A way to describe yourself as being incredibly awesome.

I’m coo luis

Coo by Excelide August 19, 2019

Coo 

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.

Coo by Sylvia April 27, 2004

Coo 

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)

Coo by JakeKitch January 27, 2011

Coo 

cute

OMG you're so coo..

Coo by CuunCuunLips January 10, 2022

coo 

Coo is another shortened way of saying killer cool. Cartman of south park also uses it.

This site is coo, real coo

coo by don February 11, 2004

Coo 

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....

Coo by Mike Rotch March 24, 2005