It's a joke used by adults, however it's mostly used by teenagers who don't know basic grammar and they're trying to make an insult.
- You are not disciplined, you don't know basic grammar and you have zero responsibility for anything.
- you're mom gay
Related: ur mom gay gay meme grammar
Usually used as a "comeback" for those in middle school, but immature people tend to use this thinking they are funny
Donny: what are you doing today
Ronny: you're mom
An insult that really is very cringe nowadays, and some people can't spell properly. It should be your mom, not you're mom. The person who is being insulted must be very confused when they see them being insulted with "you're mom".
The better way of saying your mom.
Guy 1: you're mom ghay :sunglasses:
Guy 2: *roasted*
a legendary figure associated with an unknown man named Joe, you're mom is often a target of humerus insults.
You're mom is so fat, when she fell I didn't laugh, but the sidewalk cracked up.
You're mom is so stupid when they said it was chilly outside, she grabbed a bowl.
Jim: You're mom
Jim's mom: Yeah I know that you retard.