A series of jokes and comebacks that started with “ur mum gay” followed by “ur dad lesbian” and so on. The only known exception to all starting with “ur” is “no u” which reversed the insult. The newer the comeback the more devistating the roast
Joe: ur mum gay
Carl: ur dad lesbian
Joe: ur granny tranny
Carl: don’t make me do it
Joe: do it pussy
Carl: ur dicks a chick
Joe: *sent to an alternate reality forced to walk alone for all of eternity, ashes fall on the floor*
Janitor, hours later: these “ur” jokes gotta stop.
by Dank meemees March 24, 2018
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ur a joke describes someone when they are being/doing something dumb.
"Camille ur a joke"

"Ur a joke for thinking she'd believe that"
by ken joe April 21, 2019
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a joke targeted towards one's mother.
Opponent 1: ur mom so fat her house got stretch marks
Opponent 2: ur mom so slow it took her 9 months to make a joke.

Other guy: they're making ur mom jokes!!
by wxbjhjh April 28, 2022
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On April 3, everyone would be allowed to make a “Ur Momma” joke without dying of cringe.
Time to go make billions of ur momma jokes without dying of cringe because it’s National Ur Momma Joke Day!”
by Jaundoce April 16, 2022
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