MOO 

Refering to a cigarette, usually a term used in the Las Vegas area, local slang

hey man, can i bum a moo?

MOO by Master_Vader_to the max! November 27, 2009

moo 

is a great insult to fool your opponets
means yeah betch suck it

A:billy your mom is a whore
B:well...um...your dad is my bitch yeah uh huh he owes me 298$
A:....*gasp
B:MOOO

moo by Loe November 15, 2007

MOO 

Master Of the Obvious.

MOO: Dude there's a cop behind you! Better pull over, whoa man his lights are all on, aren't they? Omg OMG your so in for it!!!!
Driver: *punches in face*

MOO: WOW this line sure is long isn't it? Looks like a long wait, I'm so glad I was here early, see I got all the deals, see you around huh, pal?
Christmas Chris: Yeah but I'll see your mom first tonight

MOO by swankmasta.6000 July 12, 2013

moo 

to disapprove of

Dad: "Go clean your room."
Daughter: "Moo."

moo by jennitadkys June 4, 2014

moo 

A cow's lingity

"Moo," said the big black cow.

moo by Gambit0687 June 6, 2015

Moo 

The sound a cow makes

Cow: Moo
Elane:Moo!!!!

Moo by Its_True13 November 12, 2015

Moo 

A sweet girl, very funny, intresting and she looks very hot. She's very sportive and is a family person. She doesn't like if people touch here, only her husband can do that. She is very health and does care for people.

Person 1 : moo is so sweet
Person 2 : yes i want to be her husband i love her
Person 3 : yes her ass shakes during fucking

Moo by Binkiewinkie January 2, 2017