One of the eight most deadly phrases in the world. It has not been muttered since the anciet great wars, not to be used lightly.
Justin: Ur mom gay
Kyle: Ur sister a mister
Justin: That's it... Ur brother is ur mother

All the stars' gravity becomes 10000000000x stronger pulling everything into their reaches. Once the final star has been born the big bang happens again.
by capricornicus March 19, 2018
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Worse than you're mom gay, ur dad lesbian, and ur granny tranny COMBINED.
When this phrase is uttered, the speaker immediately transcends to the next galaxy, and the sun becomes a black hole.
Ryan: ur mom gay
Ethan: ur dad lesbian and ur granny tranny
Ethan: say it u won't
Ryan: B E T
Ryan: UR BROTHER UR MOTHER
*solar system collapses, universe shrinks, Ryan transcends to heaven*
by biggest-nibba-down-south March 17, 2018
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when ur angry at someone but u dont want to insult them and ur in the middle of insulting their mom so u think of a quick answer
omar: haha i farted
farris: WHAT THE HECK MAN UR MOM IS UR MOTHER
by MoroTheMaster June 17, 2020
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As compared to "ur sister a mister"
It is pretty much the same thing but worse.
John: Ur sister a mister
Rob: Well ur brother is ur mother
John: Oh shit
by dragoJim March 15, 2018
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Whyyyyyyyyyyyyyy
Hello u know i got B likewhen ur mother is dumb???
by February 20, 2022
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The worst insult possible in the entirety of the English language, ur mom gay, ur dad lesbian, and ur granny tranny dwarf in comparison.
1:ur mom gay

2:well ur dad lesbian

1:no u

2:well ur granny tranny

1:then ur grandpap a trap

2:well ur mother-in-law fucked ur papaw
1: *explodes into dust, immediately in hell*
by milkchocolate10291 March 14, 2018
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