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2. koo
The act of which the primary aim is to gain, regain or sustain social status, by partaking in an action that the individual perceives to be "cool".
Person A embarrasses Person B in front of Girl C that Person B is trying to impress/pull/shag etc.

(Hence being koo!)

Person B would then have licence to say: "Very Koo!"
1. koo
To be kool.
That du rag be koo dawg.
by Wangsta Nov 18, 2003 add a video
3. 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.
4. 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
5. koo
koo is a sound bird-like males make when they want to attract a female.
Koo... ( You look hot, Mama!)
6. Koo
Originally the result of a mancunian attempting to mimic a seagull, the word 'Koo' is best used when stoned to warn others around you that you are in said condition. It can also be used as a substitute to just about any other word in the english language, though such usage is ill-advised as it can irrevocably damage your social life and lose you some serious pulling opportunities.
1:Basil: "Kooooooooooo im fuckin well stoned"
Trevor "Koooooooo me tooooo"

2:Gary: "Are you kooing then you koo-faced koo-dodger for koo's sake?"

Ahmed: "Koo off"
7. koo
A lovingly derogatory term for all shapes, sizes, colors, and races.

Girl1: Yo, go buy me a Bawls?
Girl2: Don't be such a f*ckin' koo.
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