ya mum is a word u say when u hav no comeback
-how was ya sleep
-ya mum
by Samdawg April 25, 2007
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Adding to what i said earlier...

shut ya mum, meaning shut up.

Also, something to say when you dont know what else to say.
Zoe: "blah blah im zoe *screeching laughter"
Me: "shut ya mum zoe"

Zoe: "why do you hate me
Me: "erm, ya mum"

"did you have sex with my boyfriend"
"ya mum"
by sunnybunch May 4, 2003
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ya mum ya dad ya gran and ya pet
ya mum!
ya mum ya dad ya gran and ya pet ha!
by Beelzebe April 1, 2004
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"yo girl is a butta-face ass hoe". "FUCK YOU NIGGA YA MUM".
by yayareahottie August 11, 2005
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I seen ya mum playing soccer bare foot with a medicine ball in Tasmania
by Anonymous August 12, 2003
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An accusation that one's mother is also one's grandmother (which is technically possible).

A versatile phrase predominantly used as a greeting or insult.
John: I'm goin' out to harvest some corn

Mark: Ya mums ya nan
by Dr. Yuwar Grabbinmabube December 5, 2020
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scalli/townie phrase, used as an insult.
YA NO U, YUR SCUM OF ERF, SCUM OF ERF I SAY. YA MUM! - scallism at max.
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