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ur sisters a mister 

An insult that you can use instead of ur mom gay or ur dad lesbian.
Bob: Hey Steve ur mom gay
Steve: Oh yeah? Well ur dad lesbian
Bob: Ur sisters a mister
Steve: *all brain cells explode and Steve fucking dies*

Ur sisters a mister 

Even worse than ur mom gay, ur dad lesbian and ur granny tranny! Makes Jupiter explode!
Pete: Ur granny tranny
Alex: Ur sisters a mister
Jupiter *explodes*
Ur sisters a mister by JrgnVS March 14, 2018

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*

Ur sister a mister 

A very dangerous phrase, not to be used lightly. Has risen from other primitive phrases such as ur mom gay, and ur daddy lesbian.
Carl: Ur mom gay
Dylan: ur granny tranny
Carl: ur sister a mister

*every world ceases to exist as God himself falls down onto his knees and weeps

Ur sister a mister 

This word is only used after your vicious enemy uses the world ending saying “ur pappy trappy”. “Ur sister a mister” can reverse the world ending and causes a blackhole to suck the earth into a bottomless pit of darkness.
Bill-ur pappy trappy
*world starts to end*
Jon-ur sister a mister
*world stops ending, and blackhole shows up infront of the sun*
Stephen Hawking- my theory was right. Only the mere saying of “ur sister a mister” can cause a black hole

Ur sister a mister lol 

When some hits you with the ur mum gay you use this and dominate them
Bitchman: Ur mum gay lol
Dickface: (is unaffected) ur sister a mister lol
Bitchman: *digs his own grave and lies in it*
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