koo

a person who is a total genius. These people have GPAs of 5.1. Even though there is a lack of koo-i-ness in people, they totally own any other random last names. Comes with a huge abnormally large head. Common sense not included.

Wow did you see how that smart guy walked into a wall and then crushed it with his abnormally large head, must be a koo.

by Pandapwnsyou December 24, 2010

koos koos

A dirty piece of shit with crazy antics who always has boogs. AKA Mucus.

Marcus Griesmer.

BEAR!

by J-Murda January 31, 2005

Koos

When 3 men participate in a sexual act where both partners 69 and one is shitting while the other is pissing in their partners mouths. A third participant is urinating on both koosers.

Me Andrew and Coop did Koos last night. I’m so gay and it was stinky.

by Straight fax 01 December 23, 2022

Koos

It's vagina but in Arabic

Hey...I'll eat that koos

by John cleav May 31, 2017

koo

koo is a sound bird-like males make when they want to attract a female.

Koo... ( You look hot, Mama!)

by Bird-like female December 18, 2008

koo

A complete bender who is afraid of getting in trouble.

Oliver- I'm gonna kill you *sees teacher* ohhhhh nooooooooo dave- your such a koo

by uberfan1 November 24, 2011

nutsy koo koo

someone who is crazy or stupid.

a word used in the movie "hotel transylvania 2"

"his mother's already nutsy koo koo!"

-dracula

by Ness EarthBound March 18, 2023