ur mom

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

Bob: What are you doing tonight?
Joe: Ur mom

ur mom by i luv jesse mccartney April 25, 2005

Ur Mom

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.

Ex.
Home Dog: What you doing over there
You: Ur Mom
Bystanders: Ohhhhhhhhh!
Home Dog: 😕

Ur Mom by Jeromeismehnamr March 1, 2015

Ur Mom

a big object that is as big as 2.5 whales, 5 suns, and 3.597 piles of earth
And is your mother

this is commonly used as an insult

a man: Wow that thing is big as Ur Mom wooow!
The other Man: Wow I hate you stop

later
A Man was slain by The other Man.

Ur Mom by Racercooper November 10, 2021

Ur mom

A comeback that works for everything

Dude youre so bad at life!
ur mom is bad at life.

Ur mom by UmmTheUsernamesAreAllTaken January 9, 2016

ur mom

Use when someone is asking you a nosy question or just something stupid as hell.
Reminder: never say this in front of a person who does not have a mother.

SARAH: Hey, whatcha guys talkin' about?
ASHLEY: ur mom.

ur mom by Stephie Thong February 27, 2003

Ur Mom

The thing that manufactured you.

Also a comeback.

guy 1: Dude what made me?
guy 2: Ur mom

Ur Mom by Turtles_ January 28, 2021

ur MOM

A highly derogatory phrase which replaces the subject of a person's sentence to form a base and unoriginal form of retaliation (for those with difficulty thinking of witty comebacks).

"That was a great sandwich."
"Ur Mom was a great sandwich! Oh! Diss!"

ur MOM by bamboo shoot October 25, 2004