A fork of Rural Dictionary
Person A: hey man what are you doing? Person B: ur sister, bitch
Ur sister a sibling that is your brother just a girl.
Person A: i had fun our sleepover last night. Person B: i had fun with ur sister last night.
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*