If you are a mo fo you are a mother fucker!!!!!
"You mo fo" says the boy "fuck you" you reply
by dan543 April 12, 2006
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short for mother Fucker- (a place)
someone is gonna get hurt up in this mo fo
by Gdubs October 3, 2006
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Comes from the Latin root Mattus-La-Menacius, which was lost in translation several times to become mo fo. Mattus-La-Menacius was a Roman Centurion / dick sucker from 200 BC.

Legend has it that his descendance still lives on today in the canadian city of Montreal. They headed overseas in the 18th century after being banned from their countries for indecent behaviour, which is supposedly still going on today.

Calling someone a mo fo is the worst insult, yet quite a compliment for Mattus-La-Menacius...

Love ya Matt
Look at the Mo Fo... he seems to be screwing his sister...
by Tommy July 9, 2004
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mutha fu*ker (mostly used by my coisin Antwan)
dat supid azz mo fo get on my nerves!!!!!!
by Symone December 19, 2003
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mutha f**ka in short
sup mo fo
hows ya doin mo fo
this is mo foin' crap man
by bobass October 19, 2005
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