I was thinking earlier about poking a bit of cat shit into your mummy's bum cunny.
by tudda dahl September 3, 2008
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When u bum your nan, u bum ur nan, u might pull out a dirty oliver.
OI, GURV i kinda did BUM YOUR NAN.
by Bum your nan July 9, 2020
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A countermeasure to the heavy insult ‘your grandpap a trap’. Very illegal insult may only be used by the highest ranking roadmen, high stature politicians and royalty. However few known individuals with no respect throughout the community have used this clapback and came off a free man.
(Nonce A is getting loud)

Nonce B: your son a bum
Nonce A: ok, you’re fucked, cya in another life
by Nova da lad March 18, 2018
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When someone doesn't have the same point of view as you, you use this saying. Usually used in a sarcastic tone.
"Oh my God! Don't you just love watching hamsters piss!?!"

"Hmm, Whatever bums your mum."
by x_Lucie September 11, 2006
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alternate to give your head a wobble for advance English speakers
Guy 1: That bitch is pissing me off. She burnt my fish fingers.
Guy 2: I'd love burnt fish fingers off yer peg. You need a nigger in your bum mate.
by Bbozzy September 29, 2020
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