1. The absolute BEST retort to any and all insults.
2. The target of many insults. How everyone's mother can be so many things at the same time is beyond me.
These two words can be used in many ways, like insulting or talking about someone's mother. Of course, the things people joke about are entirely inappropriate, usually. Sometimes they aren't too bad.
Jeff-Hey, Joe!
Joe-Yus, Jeff? What's up?
Jeff- YO MOMMA IS WHAT'S UP!
Joe-That didn't make any sense.
Jeff-YO MOMMA DOESN'T MAKE ANY SENSE!
Joe-Man, seriously?
Jeff-Yo momma, seriously?
Joe-This is too hard to deal with. You're a big idiot.
Jeff-YO MOMMA IS BIG!