Usually when people gets roasted people use this sentence trying to reflect on the others persons mom.
person 1:Your ugly
Person 2; Yo momma
a word for a bitch with a hairy vagina
yo momma looks like a horse
yo momma so fat when she walked by the tv I missed 3 seasons of my favorite tv show
A answer to any question someone doesnt know the answer to
Teacher: Ok, Mark what is the captial city of Jamacia
Mark:emmm...errr. Yo Momma *laughs happily and hi-5s his friend*
October 21- Say yo momma as an answer everytime your teacher calls on you ;)
Mrs.Farticles: Yes Daryson
Daryson: YO MOMMA-
*and the crowd goes wild*
a internet joke that would be a starter for a roast.
Yo momma so fat, when she jumps into the swimming pool, she causes a tsunami.