Stands for "Shit, Motherfucker"! This is ususally used to decribe extreme pain or displeasure.
Shi-Mo-Fo Butter and Bread be fuckin' me up to the bones!
by Hugh G. Rekshon November 24, 2007
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"For sure, motherfucker" - said as if you were drunk, and your mouth is full of marbles (or balls). Frequently used by old men to appear young.
Kid: Dad, you wanna go get a burger after the game?

Dad: Fo sho mo fo!

Kid (embarassed): Oh, I forgot I have homework.
by moehong August 15, 2010
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Short for Cock Sucker Mother Fucker. Or (as one Co So Mo Fo thought) Cock Sucking Mother Fucker. Either way its somone who sucks cocks cock sucker and fucks mothers motherfucker
for example "That Adie is a gaylord what do you think?", "Yeah he's a real Co So Mo Fo!!!"
by UK_Greg November 19, 2006
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a honkey being a white person or persons. mo fo being a mother fucker, and wa lest but not last being a wanna be. together honkey mo fo wa ,white mother fucking wanna be.
step your ass back honkey mo fo wa !
by mikey1969 February 7, 2008
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One who is unpleasant to the social atmosphere. A leader in incompetancy.
That dick ass mo fo just peed on the keg.
by Mickey Crotchrot December 31, 2004
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