Ur mom 

The two words that are used when a nine year old gets salty

Fortnite nine year old: "Fortnite is best!!1!!111111!
Sensible Person:"No it aint"
Salty nine year old "Ur mom"

Ur mom by Somedoodthatisbored May 20, 2020

ur mom 

A fucking stupid sentence that nobody fucking likes.

Guy: Where is Old Zealand?
some random kid: Ur Mom

ur mom by L.KUDFHGDSL June 8, 2020

UR MOM 

its ur mom duh

ur mom gay

UR MOM by CHOOCHOOTRAIN123 June 9, 2020

ur mom 

look, I know you´re just a 10-year-old kid that somehow ended up here. shouldn't you have school now?

kid 1: haha lol i roasted you
kid 2: ur mom

ur mom by a guy named adam June 11, 2020

Ur mom 

An insult that no one can come back from

Bruh you suck dick
Ur mom's dick

Ur mom by DanBeSimping June 15, 2020

ur mom 

A monster

Your mom scared the shit out of me

ur mom by Evantounge July 16, 2020

ur mom 

A highly intelligent response, this is mostly used by Albert Einstein. Smart people think of this joke, it is rated danger class nb. 9 , please do not use this infront of someone.

ur mom is so fat she walk like fat

ur mom by TheFactRevealer July 30, 2020