What is Yermom?
1.
Slang for "your mom" which is the ultimate come back in any situation, but it is said so quickly that it sounds like one word.
-Damn, where'd you get such an ugly shirt?
-yermom!
See
2.
A popular and fun way to insult someone.
You suck man, but not as good as yermom.
3.
as in who was done last night
dude 1: what did you do last night?
dude 2: yermom.
See
4.
Good way to annoy people that ask too many questions.
<bob> Huh?
<bob> I don't get it
<bob> wait, why?
<bob> WHO WAS IT DUDE
<Jag> yermom