Ur mom is a simple comeback used in practically any scenario after a insult or just something that works with the joke..
Friend: Hey what are you doing after school
You: ur mom
You: hey man last night was so fun
Friend: what was last night
You: you mean you didn't hear me and ur mom in the bedroom??
Friend: hey whats up
You: ur mom
You: ur mom
You: hey man last night was so fun
Friend: what was last night
You: you mean you didn't hear me and ur mom in the bedroom??
Friend: hey whats up
You: ur mom
by Nonmar April 16, 2022
Get the ur mommug. if someone says this to you, you might as well go hide in a basement for the rest of your life but to avoid this you must use the almighty "ur dad lesbian" but only lv 50 bosses can use this godly ability
Bob: your a gay piece of gay jimmy
Timmy: y...your mom GAY
Bob: *begins to have epilepsy and then dies*
Timmy: y...your mom GAY
Bob: *begins to have epilepsy and then dies*
by SeriousMemes.com February 1, 2019
Get the ur mom gaymug. by Farmer king lol February 17, 2022
Get the ur mommug. by L.KUDFHGDSL June 8, 2020
Get the ur mommug. 

