Top definition
Ya mum in a bagel is another come back, like ya mum
So after using ya mum you can say your mum in a bagel
KnobChesse: What yah up to later?

Yuh: Yur Mum

KnobChesse: O fuck of what yah doing later?

Yuh: Ya mum in a bagel
by Jasmine____<3 November 17, 2007
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