I have been coming up with a lot of these lately. Post your own in the comments responding to the user above.
I will start:
Yo mama is so dumb that when she takes the SAT, GOKU SCORES HIGHER THAN HER!
yo mama so ugly jiraiya wouldnt even perv on her
YO MAMA is SO ugly, SHE GAVE MASTER ROSHI ERECTILE DYSFUNCTION!
even if that were the case, YOOOO mama so fat pig god became her disciple
Yo mama is so dumb, when she saw the tsunami, she yelled "SURFS UP!"
yo mama hair so ugly yugi cringed
Yo mama is SO FAT, the navy used her as an anchor.
yo mamas so hairy the only language she speaks is wookie
Well that may be true, BUT YO MAMA is so UGLY because she is the product of Britannian inbreeding.