Your Mom is used as a Joke/Insult most of the time. It usually doesn't make sense but is funny.
Guy: Damn, Kim Kardashian's Ass is F A T
Another Guy: Not as fat as your Mom's!
The most funny joke you'll ever hear.
Ooga Booga: "Hey what are you doing today?"
Eefy jeffry: "Your mom."
The thing with the most mass in the entire universe so far. Unlike a black hole which also has a lot of mass. She doesn't attract stuff. She knocks them back and you know why? BECAUSE YO MAMA UGLY
your mom was so fat. The Chinese used her as inspiration for the great wall of China.
The fattest person alive with the widest pussy known to man.
Person1: My house broke down yesterday.
Person2: Because of "your mom"?
Used by mostly horny ass 12-year-olds that have nothing better to do
Person 1: Why were you late
Horny 12 year old: Because of your mom