moo 

A satanic ritual used to turn someone else into a mooing cow.

Ritualist: “Moo...”

Victim: “moo moo moo moo”

moo by SadisticallyTrainedDumbass January 20, 2019

MOO 

Acronym for "Maybe Only Once."

"Would you peg?"
"MOO"

MOO by CapitalQueen February 5, 2019

Moo 

A sex noise girls makes in bed

Mooooooo

Moo by Bobyjrjd April 19, 2019

Moo 

A Unique Name For A Sheepadoodle Dog

Mom! How Was Moo When I Was Gone?

Mooo! Moooo! Where Are You?

Moo by Wolfy Gacha Playz UwU November 15, 2020

Moo 

Moo;
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"

Moo by b0ng4tt4ck July 28, 2008

Moo 

Moo is what a cow says, you retard.

Cow: MOOOO

Moo by Lausky12388 April 26, 2009

Moo 

Black slang for I'm gonna kick your ass!

After being cheap shot in football, the player turns and says, "I'm gonna MOO you!"

Moo by Verga! January 1, 2012