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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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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The way a cockbite, or other wimpy-type persone would say MOTHER FUCKER. See wordmotherfucker.
Get back here with my computer you mo-fo!
by Nytehauq August 21, 2003
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Another examlpe of lazy black speech that illustrates they can't put the effort into even cursing correctly.
Look dat mo fo trippin on dose ho's.
by Moe Foe March 30, 2005
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In a last ditch effort to cover-up your potty mouth you say - mormon folk
When you innocent mormon mother asks you what you "Mo Fo" means. You reply just as innocently "It stands for mormon folk, mom." Then you hope she doesn't use it at church.
by 2much2remember October 26, 2006
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an abbreviation not understood by elders most commonly understood by teenagers standing for "mother fucker"
Ann's mother: why don't you hang out with Kate anymore?
Ann: Shes suck a mo fo.

Ann's mother: what does that mean?
Ann: ohhh nothing
by diva12 October 20, 2009
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