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1.
A mofaux is a guy or gal that acts like a baddass gangsta full of lip and attitude but once confronted by authority or anyone at all actually backs right off like a chickenhawk.

Someone who pretends to be an tough asshole hangin' in the hood, but is actually a mommy's boy living at home and studying hospitality.
George W. Bush said to the Iraqi insurgency 'Bring it on you badass mother fuckers' (or words to that effect). A little while later, however, he effectively retracted that statement, he was shown to be a mofaux.

Mofaux: Hey asshole got the time?
Person: DON'T CALL ME ASSHOLE ASSHOLE!
Mofaux: Oh sorry sir...I didn't mean to offend...
Mofaux's posse: Geezuz man you is such a pussy mofaux! (laughter at mofaux's expense)
by Goodnight Dick November 11, 2006
 
2.
One who appears tough on the surface but hides an emotionally vulnerable personality.
He may act tough but he's really a mofaux.
by Rxo April 04, 2011
 
3.
Someone who fakes being an asshole just to be friends with the "popular" kids. Not necessarily the meanest, but definitely the most annoying.
A: Yo, what happened to John? He started being a complete dickhead yesterday

B: He's just being a Mo-faux to impress the new kid. He'll get over it.
by AntimatterKING October 16, 2009
 
4.
Slang and shortened version of Mother F*cker; Mo Faux (Pronounced Mow Fow).
Stupid Mo Faux.
You can be such a dumb Mo Faux.
by Al Paton September 12, 2007
 
5.
A crossbreed between a Mohawk and a Fauxhawk.
Not a Fauxhawk because its too tall and has an undercut.
Not a Mohawk because its too wide and doesn't have a full fan.

Chick1, "Did you see that hot guy with the MoFaux?"

Chick2, "Yeah, I would totally jump his bones."
by The handsome devil September 28, 2009
 
6.
A homosexual that is sporting a fauxhawk hairstyle.
Girl, did you see that MoFaux prancing by? I wonder how much product he put in that fauxhawk to get it that way.
by L .Jackson July 10, 2008