A meme that is actually older than everyone thinks it is. Originally spawned from the YouTuber Pyrocynical, who received a tweet from BamanBoi in mid 2016 that read, "you're mum gay".
Pyro: @BamanBoi - ur mom gay

(Pyro chuckles softly and then erupts into heavy laughter)
by semem knad March 27, 2018
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"ur mum gay" is a meme used by non-normies. while they unironically dab, you can laugh to yourself bc their mum gay

P.S. the correct response to this type of situation is "no u." the person who said ur mum gay with be banished to die in a small hole 5ever.
Person 1: "ur mum gay lol"
Person 2: "no u"

OOOOOOF
by sprrite March 13, 2018
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" Ur mom gay " is a semi-joke, it shouldn't driectly provoke normal people but some snowflakes may get insulted
turboTROLL: - Ur mom gay
You : - Nah, ur dad is lesbian and your fam is backward compatible
turboTROLL: *cringe death sounds*
by PopUPpoop March 20, 2018
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The most deadly, harsh and shameful insult in the entire existence of the human race.
Billy- "Your an asshole!"
Tom- "Ur mom gay lol"
Billy- *dies*
by cato_boi March 19, 2018
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a roast people use when they are too un-original and lazy to think of a better one, commonly used by those who are special.
person: you are dumb
you: ur mom gay
person: no u
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