My Friend: Hey what do you have to do after school today?

Me: Well I always have a to do list left for me.

Friend: What’s on it?

Me: Ur Mom
by hahaha6161 March 5, 2020
Person one: What are you talking about? Humans breathe air!
Person two: Oh yeah, well, ur mom
(Person one shoots him/herself due to the shame and humiliation)
by mikeharr163 January 25, 2017
That one word that you can not come back from a roast when someones says that to you!
Billy-His brain explodes*
by OKBUDDY February 14, 2019
can either be used as a random word which people seem to think witty and bugs the hell out of people, or, obviously, your mom
by i luv jesse mccartney April 26, 2005
Ur Mom. Is basically... Anything! Ex.
Carter:Hi wanna go play fortnite?
James:No I wanna go play Ur Mom.
Carter Was on a date with His girlfriend. He said, "Hey Your Lookin Hot Today."
She Said,"Hey U look Like Ur mom. Today ( ͡° ͜ʖ ͡°)

(That's It Being Defined In A Sentence)
by TheRrandomKitsune May 2, 2020
Ur Mom (Yoor' Mäm) n.
A way to let your home dogs know that you are sexually attracted to their birth mother leaving them with confusion on what you actually meant by this. Any bystanders will then outrageously yell ohhhhhhh leaving them with more confusion than the conversation started with.
Home Dog: What you doing over there
You: Ur Mom
Bystanders: Ohhhhhhhhh!
Home Dog: 😕
by Jeromeismehnamr March 1, 2015
The thing that manufactured you.

Also a comeback.
guy 1: Dude what made me?
guy 2: Ur mom
by Turtles_ January 29, 2021