Moo 

I)A battle cry of the almighty cows, signaling yet another erased segment in space and time.

Cows usually say "moo".

Moo by HolsteinCow May 4, 2003

Moo 

The upside down version of woo!. Coined in the VA area to mean not woo! or celebratory. Another word for lame.

I just failed my exam. moo.

Moo by BD$ Click January 10, 2012

moo 

what a cow says when it is happy, sad, pissed off, eating, doing anything that a cow can do.

Cow1: Moo.
Cow2:Indeed.

moo by hasitsentityet? January 17, 2010

moo 

the sound a cow makes

the cow will moo if you annoy it.

moo by xxThinkOfYou July 23, 2009

moo 

Word the interrupting cow makes whilst interrupting...

John: Honey we need to talk..
Jane (Cow): moo.
John: But honey, I --
Jane: moo.
John: Jane, you're not listening to m--
Jane: moo.
John: Jane, sweety, please lis--
Jane: moo.

Etc..

moo by Lone Latino August 29, 2006

moo 

1: A sound that a cow makes

1: the cow goes moo

moo by foreveryoursforeverandever May 18, 2009

Moo 

A person of both mexican and jewish origins.

Moo, a mexican jew

Moo by G3po May 3, 2009