1. a TV show with Wilbur Valderama(Fez from "That 70's Show"
2. A cruel start to a funny joke.
3. Your mother.
1. "time for YO MAMA!!!"
2. "Yo mama so fat when she sit's on a rainbow skittles fall out."
3. Lynn Ann Wilson
by The Child March 28, 2008
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"yo moma" is something you say in front of every sentence that some1 says just to piss then off
Guy 1: I'm going to tie my shoes
Guy 2: YO MOMA'S GONA TIE HER SHOES!!!

Girl 1: That Girl is a slut.
Random Guy 1: YO MOMA'S A SLUT!!!
by J R Stokes July 5, 2004
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They call yo mama "The Squirrel" cuz she always got nuts in her mouth!
Yo mama like the bus: everybody gets a ride for one dollar!
by Nasty Nate October 3, 2003
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Slang for "your mom". A nice insult! Talking about your mom is really insulting.
Ex. 1
Some guy: Get a life...
Person responding: Yo mama!
Some guy: What did you say! *beats up person responding

Ex. 2
Some guy: You fat pig...
person responding: Yo mama's a fat pig!

by GABEMSTR November 15, 2006
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The person who loves you even if you act like a heartless bitch who cares about only yourself. The person who argued for their right to have you in the first place, and has never been sorry she did even when you completely turn your back on her. The place you can always go when you find out that friends come and go but your mother will always be there to help you pick up the pieces.
Only Yo Mama could forgive you for that.
by Always143 August 12, 2010
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the first two words of some of the best and worst jokes of all time
Yo mama so fat that when she sits down, the record skips. AT THE RADIO STATION!!
by kymcleod October 12, 2003
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A term that originated in street diming which precedes an inventive insult to the other person's mother. Presumably because once upon a time, in the 'hood, Mothers were highly prized.
"Yo mama" so fat, she have to go downstairs sideways.
by Ajjax August 19, 2006
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