The worst dumbass insult that could ever be said. Anybody it is said to will be instantly obliterated, along with the entire universe.
Carl: *says well made insult*
Joe: "ur mum gey"
Carl: *fucking dies*
Universe: *fucking dies*
by Backwards Toilet Paper January 25, 2021
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This is the almighty insult you should NEVER use upon an oponent unless absolutely necessary. The last time this insult wad used, it was used by Alexander Graham Bell in a prank call. As a result of this, the fabric of space itself was torn into shreds, resulting in evolution reversing into what we are today. Using this defense mechanism will end the opponents career and send he/she into a deep depression. Dont expect to live to see the next day as an antidote recently discovered by acting legend, Bill Nye The Science Guy. The phrase "no u" resulted in the defender dying because blood stopped flowing into his brain from chocking literally on Bill's entire ass cheek.

Use with caution
*points at teacher "Ur mum gey lol"
*teacher rips off clothes and sets into his battle stance. He slowly develops a raging blue ball of ki in between his two hands and screams "NO U" as he releases his deadly blast. The entire school is devoured by a quantum flux*
by Leyef July 30, 2018
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The one comeback that will end all human existence. This terrifying comeback is only used in the proper context. If used in the wrong hands, death will be between upon u.
Carl: Bro u know, u kinda suck buttchecks
Jim: Yeah? Well ur mum gey lel.

This example was proper
The next example will kill u
Carl: Ur my best friend. Hecking love u man
Jim: Lel ur mum gey
In this case Jim is gonna die.
by heck u December 19, 2018
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A very well meme put in YTP's, This is LITTERALLY one of best insults you could use in Dream SMP, And a good way to be called a simp and have a comeback using the fact that you probably ARE a simp.
Friend: I've seen watch you've been lately, and 10/10 you're a simp
You: If the following is true then. UR MUM GEY
Friend: No! That is untrue
You: THEN TAKE THAT BACK!
by Danny Anims on YT January 25, 2021
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