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A question for anything possible. Can be answered with any random thought, or statement. In fact, moo? itself can be a statement.
When you don't hear somebody, or need clarification simply ask moo?.

When bored just whip out a moo?, for any fun number of answers.

When in doubt just say moo?.
by Joa July 13, 2006
An underground gang located in Madison, Wisconsin. Compareable to bloods and crips but bigger.
"Yo, I heard them moo's was out causin' troub' again.
Refering to a cigarette, usually a term used in the Las Vegas area, local slang
hey man, can i bum a moo?
by Master_Vader_to the max! November 27, 2009
Term derived from a Friend's episode where Joey uses "moo" in lieu of the word "moot".
Joey: All right, Rach. The big question is, "does he like you?" All right? Because if he doesn't like you, this is all a moo point.
Rachel: Huh. A moo point?
Joey: Yeah, it's like a cow's opinion. It just doesn't matter. It's moo.
Rachel: Have I been living with him for too long, or did that all just make sense?
by Karen Amanda June 15, 2006
1. A word used to describe likes/dislikes
2. A greeting
3. Sign of acknowledgment
Exmp1. a)"Hell yea man, thats Moo"
b)"Bloody Moo like"

Exmp2. Boy1: "Hey dude"
Boy2: "Moo"

Exmp3. Girl1: "Did you see that one?"
Girl2: "Moo"
by b0ng4tt4ck February 13, 2006
Interjection used to express disgust toward an especially obese individual.
David is such a fat cow. Oh look, here he comes. Moo!
by OG-Z January 25, 2008
another word for a mans sperm AKA as mo'o
hey look that guy just got some mo'o from that store.
by Mofo Negro May 11, 2007