The worst insult known to mankind. Saying this will end the galaxy and all known planets in existence. All life on earth will be completely destroyed as a thottie apocalypse will kill the earth's human population.
Frank: lol ur mom gay and ur dad lesbian
Ken: well ur granny tranny

Frank: Lol ur sister a mister
Ken: *strains hard* don't make me do it man
Frank: Do it you pussy
Ken: UR BROTHER A MOTHER!
*frank gets cut in half by an invisible blade, the moon blows up, and 200 thots appear from every corner as the galaxy explodes.
by Middleskwldood March 20, 2018
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the worst insult you could ever say to anyone. saying it results in the instant death of the one being insulted. nothing can stop it. don't use unless your life is on the line.
jon: "your mom gay"
max: "your brother a mother"
jon"oh god. OH FU-" *dies*
by tonyross March 19, 2018
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An insult typically used by 17 to 19 tryhards. Usually when they are losing. This is also one of the worst insults ever and whoever you tell this to will have something bad happen to them.
by MemoliLover April 26, 2018
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The worst thing you could possibly say in this time of the world. This phrase will instantly reverse time and remove the person targeted from the universe
Jim: ur mom gay

Bill: ur daddy lesbian
Jim:ur granny tranny
Bill:ur grandpap a trap
Jim:ur sister a mister
Bill: ur brother a mother
Jim *instantly disintegrates* *time altered god isn’t real*
by Niggerfaggotretard March 16, 2018
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"Ur brother a mother" is a step up from ur dad lesbian. Every time these magic words are said, we as a species traverse deeper into the he'll hole known as extinction.
Assmeister43 : ur mom gey
Kermit_1h3_D: ur dad lesbian
Assmeister43: no u, ur brother a mother

*kermit's house would explode, killing him, and any family inside*
by Waus May 30, 2018
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We have had ur mum gay, ur Dad lesbian, ur granny tranny and ur sister mister, ‘ur brother a mother’ is the insult to end it all.
Bob: ur Mum gay
Fred:ur Dad lesbian

Bob:ur granny tranny
Fred:you asked for this
Bob:no please I’m sorr-
Fred: ur brother a mother

*the world travels back 400,000,000,000,000,000 years and the first ever speck of this world cries
by Trolley_Man March 18, 2018
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