Have you ever used a "yo mamma" joke as an insult in anger, not as a joke, but in an actual fight?

no but it would be nice to use yo mamma jokes instead of violence

No.

yes =(

No because who would be scared of that saying ?
Yo mamma,- I will wager that scared you! (I do not think so)

nope cant say that i have

No. Because if you're in the heat of a fight, you don't have much time to spare thought to wit. All you're thinking is "I want to tear this mother****** apart!"