"for sure, without a doubt"
"better believe it!"
my man Denis has a lumpy head, fo shizza!

Eoin is a funky lookin nizza, fo shizza, fo sheezy!!!
by Wes September 15, 2003
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a girl (or guy i suppose) that is known for being easy. So easy, in fact, that you will "for sure" ("fo sho") be getting laid by them. Also known as a slut.
Dude, i'm so stoked to go out with Suzy tonight; she's a fo sho fo sho!
by shannybanny March 21, 2008
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for sure for sure. said by the s-n-double o-p. Commonly said by this tight ass kid who starts shit like that.
Mandalay:whaddup
Tight kid:fo shizzle fo sho
Mandalay:you ever gonna stop sayin that?
Tight Kid:Fo shizzle fo sho
Mandalay kid:Man, you too tight. i give up
Tight Kid:Fo shizzle fo sho
by Fo shizzle fo shoes January 22, 2004
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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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Isnt the world a better place since ASHLEY made up the phrase fo-sho-mo-fo? Yeah she's so damn hot... DONT YOU WISH YOU KNEW HER? Oh yes. The answer is "FO-SHO-MO-FO!"
by Ashley April 14, 2005
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