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 17, 2009
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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
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faux-mo pronounced fomo meaning false or fake (faux) motivation (mo) achieved through some type chemical stimulant to cause activity that is not achieved through natural desire. An induced active state using a fake substance such as drugs or stimulants caffeine sugar pep pills amphetamine cocaine energy drinks Ritalin Some hallucinogenics can bring on a motivated mind set depending on the persons brain chemistry. (not to be confused with the dyslexic word fomo aka fucker mother)
Hey man you know where I can find any faux-mo, I cant shake of these holiday blues.
by writenaked September 8, 2016
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