ur sister mister- the ultimate comeback that can never be countered so you always win with.
jeff: ur grandpap a trap

dave: ur sister mister

everything dies the earth implodes and the big bang happens again
by ur mum gay lol March 27, 2018
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Ur sister mister is the next level of ur granny tranny. It is stronger than ur mom gay, ur dad lesbian and ur granny tranny combined. Nobody who ever heard this sentence is alive.
John: Hey Jeff ur mom gay
Jeff: No u
John: Ur dad lesbian
Jeff: Ur granny tranny
John: Ur sister mister
Jeff: *jeff and his whole family instantly die and go to the deepest layer of hell*
by TheRealMemeGod March 14, 2018
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