ur sister

it’s ur mom but for gays

Mark: ur mom
Jack: ur sister
Mark: kys

by zandingo January 27, 2020

Ur sister

A common comeback or a sexual joke made by people

I had fun last night

I had fun last night with ur sister

by Jdhdhehe March 8, 2020

Ur Sister

The person I did last night

John: I saw u in my house last night
Carmine: yea I was doing ur sister
John: GET THE FUCK OVER HEAR

by Iwasinurmom May 13, 2021

ur sister a mister

The ultimate form of the worst words to be used, even greater than "ur mom gay";"ur dad lesbian";"ur granny tranny" and "ur grandpap a trap". Those words can hurt a person emotionally,physically and psychologically.

David: ur mom gay lol
Frank: no u
David: ur dad lesbian
Frank: ur granny tranny
David: ur grandpap a trap
Frank: ur sister a mister
David: *explodes into oblivion and his soul is being eaten by minecraft youtubers*

by urmom_gay_slayer_no_u_xddd March 15, 2018

Ur sister is a Mister

Infinite times worse than ur mom gay

Dave: Ur mom gay
Kieth: Ur sister is a mister

*alternate reality gets destroyed*

by Big Sex 2678 March 12, 2018

Ur sister is a mister

The insult searched for in the depths of Volcanos, anytime this is used an alien race is wiped from existence

1: ur mom gay
2: ur dad lesbian
1: ur granny tranny
2:ur grandpap a trap
1: ur sister is a mister
*zarblorgs fuckin die*

by Penis 10 inch haver March 14, 2018

Ur sister is a mister

An insult meaning that your sister is actually a transgender man. This insult is so rare it has only been said by 4 people and was buried in the Egyptian pyramids to never see the light of day.

Guy: ur mum gay
You take out a golden box
Guy: Holy fuck hold on man I was just joking please don’t do this
You: Ur sister is a MISTER
World explodes

by RegimeoftheGalactic March 14, 2018