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Jokes that are commonly used to dis both the victim of the joke and his/her momma such as Yo Momma's so fat, stupid, ugly, poor...and so on.

If watching your friends make them up isn't enough, there is a show on MTV called "Yo Yomma" where the best jokes win.
Here are examples of some classic yo momma jokes.

Yo Momma's so fat she saw a bus go bye and shouted, "stop that twinkie!"

Yo Momma's so stupid she got hit by a parked car.

Yo Momma's so poor that when her ciggarette went out she said, "Where did the heat go?"

Yo Momma's so fat she farted in the Gulf of Mexico and caused Hurricane Katrina.
by Magaritavile July 07, 2006
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An endless series of jokes beggining with "yo momma so..." and ending in a custom punchline. jokes include, but are not limited to:

Yo momma so fat...
Yo momma so dumb...
Yo momma so ugly...
Yo momma so slutty...
Yo momma so old...

You have to make yourself sound black when you say them. It doesn't really make them funnier or less annoying, that's just what you have to do.
common Yo momma jokes:

Yo momma so fat, she walked in front of the television and I missed three commercials.

Yo momma so dumb, she stared at the orange juice carton because it said "concentrate."

Yo momma so ugly, when she tried to pay the male prostitute to bang her he looked her up and down and said "No way. Even sluts have standards."

Yo momma so slutty, even Snooki can't keep up.

Yo momma so old, Jesus was in her yearbook.
by ygfrekwfgwerfh November 25, 2011
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Jokes that say how fat/ugly/old/stupid someones mom is
The're usually used by a 12 year old with no life
4 yo momma jokes:

Yo mommas so fat, when she swims in the ocean the whales start singing "we are family!"

Yo mommas so ugly, when she looks out the window she gets arrested for mooning

Yo mommas so old, she owes Jesus 5 bucks

Yo mommas so stupid, she tripped over a cordless phone
by Bob_McBob December 15, 2009
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A joke that disses about yo momma's fatness, stupidity, how ugly she is, etc.
Here are two yo momma jokes:

Yo mama's so old that the last time she got laid she used a dinosaur-skin condom.

Yo mama's so dirty that I had phone sex with her and got an ear infection.
by un-named August 20, 2006
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