Bumberclart means the same as rarsclart but has a more offensive meaning.
That puff is a (bumberclart)
by Big CHARVA March 29, 2018
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Adjective; To replace any possible word you wish to disguise. Alot like 'doofar' but used to cover more degradory words up.
Iain; "Have you seen that bird over there?"

Craig; "Yeah, she's got a cracking set on bumberclarts on her!"

Jackie; "Stop looking at my tits you pair of bumberclarts!"
by T666KSH January 8, 2008
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a person who like it up the bum. and likes to brag about it, even though no one gives a shit.
"I had anal sex last night Steven"
"Shut up Gareth, no one cares, you absolute bumberclart"
by libralouise May 10, 2018
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