Ur mom 

A very good comeback for ANYTHING, and when I say anything I mean ANYTHING

Olivia: fatass pig

Maya: ur mom.

Ur mom by Weird urban Dictionary user December 8, 2019

ur mom 

“ur mom” is a phrase that elementary and middle school kids use. they think its soo funny to use it but its really not

girl: ur so ugly
boy: like ur mom

ur mom by itzzakaren_____ December 10, 2019

ur mom 

An insult

dude - so what did you do last night?
other dude - ur mom.

ur mom by itotallyhaveanawesomename December 10, 2019

Ur Mom 

A type of cringy memes only Mason Helts use because they play fortnite in their mom's basement and have no friends.

guy 1: hey what's up guys
Mason Helt: Ur Mom

Ur Mom by person#not7 December 11, 2019

Ur mom 

Ur mom

Ur mom fat

Ur mom gay

Ur mom by DuckDuckGoToThePolls December 15, 2019

Ur mom 

It means the person who birth you
You dumb fuck if you didn’t know that ur slow I. The head

Me:Hey Kyle is that ur mom
Kyle: yes that is

Ur mom by I’m a bored kid December 15, 2019

ur mom 

The worst insult to ever be heard

Person 1: ur mom
Person 2: *dies*

ur mom by Jfjendjcndke December 18, 2019