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1.
A generic insult used to describe one who is irritating, annoying, or an idiot. (synonyms include but are not limited too: ass, asshole, bastard, bitch, blockhead, bonehead, cocksucker, dick, dickhead, dolt, dope, dunce, fool, halfwit, idiot, imbecile, jackass, jerk, mother-fucker, nincompoop, ninny, nitwit, numskull, rascal, scamp, schmo, schmuck, simpleton, son of a bitch, tomfool, twerp)
1. If someone is driving badly, one might say "Hey momo! Learn to drive!"
2. If a loud crow outside your window wakes you up, you might say "God! Shut up stupid momo bird!"
by Horben Dragonsbane September 12, 2005
 
2.
What a fucking idiot!
He is such a mo mo!
by dina November 21, 2003
 
3.
1. Japanese for "peaches"

2. A character in the Nickolodeon cartoon "Avatar: The Last Airbender" also features a lemur whom is named Momo, as it takes a peach in the first episode it appears.
You can eat momo with skin on.
by Tylerdamnit August 11, 2007
 
4.
Another way of saying "Moron".
I can't believe you screwed that up! Nice job, Mo Mo!
by Adam Cecchini January 03, 2006
 
5.
nickname of the great one
MOMO is the MAN!!!
by fomoso February 04, 2010
 
6.
The quintessential form of a woman. goddess,the perfect model of cuteness and innocence. Irresistable with the power to melt ones heart.
ex: I spent the best 6 months of my life with momo.
by diego1103 May 24, 2007
 
7.
mother fucking moron
that fucking mo mo
by Jimmy November 03, 2003