mao 

The rapid and forceful consumption of a mind/state-altering pill. Originating from the sound one makes when performing said act; onomonopia.

Daniel K. Mayer: "Open your mouth... trust me."
Neil Sandinger: (opens mouth, rapidly inserts) "Mao!"
Daniel: "My turn, mao!"
Both: (giggling ensues).

mao by DAEps July 13, 2010

MAO 

n./ onomonopia/ The sound the maocat makes. This sound will be eniviatably be uttered by Melody's maokittens.

Origin: Milford, CT

Ex. After jimmy was done playing with his trainz games, he heard maocat exlaim MAOOOOOO from under the house

Maocat: MAOOOO

MAO by thosearntmyshoulders August 22, 2009

mao 

a word computer geeks use to describe something they find fun or silly.

geek #1: Man last night at the lan party was killer!

geek #2: MAO!

mao by CashCar August 12, 2003

mao 

often used in substitution of: dude, man, guy, person.. etc.

whats up mao?

mao by asherah July 27, 2003

Mao 

The highest level ( most insulting ) level of noob-ness. It is used in the place of yelling the word noob so u dont have to use your caps lock or shift key. in other words... Mao = NOOB, noob is not as bad as NOOB because caps show Screaming

Guy 1 (talking about guys 3)"That guy is such a NOOB"

Guy 2 "No that guy is a Mao!!!"

Guy 3 " ROFL ROFL ROFL IMMA mao WTF IS THAT IM SO NOOBISH IDK WTF URBANDICTIONARY IS!!!"

Mao by ReptarRAWRRAWRRAWR March 25, 2009

Mao 

A card game that is fun, but when Asian players join, is taken too seriously and loses many of its fun elements.

Rob: Man, that was a fun game of Mao we had going until Steve Chen came, won two straight rounds, and made rules involving college-level math.

Mao by a someewhat smart guy June 20, 2009

Mao 

A Chinese name meaning "luxuriant" or "prolific". Fourth tone in Chinese.

Guy #1: Hey, have you seen Mao?
Guy #2: Yes, he just drove by in his Ferrari.

Mao by luxuriantleaf January 23, 2011