When you are arguing and ur friend says ur sister mister u say ur brother mother. And you win the argument.Simple as that.
Brad:Yo Carl ur mom gay
Carl:No u
Brad:No no u
Carl:Ur dad lesbian

Brad:Your mom and dad both gay together

Carl:Ur granny tranny

Brad:Ur sister mister
Carl:Ur brother mother

Brad:*evaporates*
by Carl6996 March 18, 2018
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The most powerful response to anything and should never be used. If used the sun will engulf the solar system and destroy god himself
Billy: you know what ur granny tranny
John: don't do this Billy
Billy: ur sister mister too
John: well ur brother mother
*Billy's head pops and the sun bursts destroying the solar system and causes the whole galaxy to collapse*
by Meemeeyungboi March 16, 2018
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The most insulting shit you could say to someone as soon as you call someone this insult they will instantly die and you will claim there soul
by Penis aids 96 May 14, 2018
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The most dangerous of all phrases. A simple derivative of "ur mum gay" and "ur daddy lesbian."
Faggimus: Ur granny tranny!
Clitorimus: Ur sister mister!!
God: Ur Brother Mother.

*The Universe itself expands at a rapid rate and proceeds to become one black hole
by Faggimus Clitorimus March 17, 2018
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The most powerful, insane, phrase that can ever be spoken of.
Steve: ur mum gay
Jack: ur dad lesbian
Steve: THATS IT. UR BROTHERS UR MOTHERRR

*Two universes collide and create a black hole which destroys all of the galaxy*
by DEEPCREEP March 16, 2018
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