Verb. To suck another persons/or if managable your own bum, simply done by attaching your mouth to someones anus and sustaining a sucking motion.
Andy:"God Liam, you are such a bumsucker"

Oli " She asked for it, so I bumsucked her"
by Paris_James April 29, 2006
Top Definition
one who loves to suck things... usually bums and male objects.
your such a horny "bum sucker"
by molly_247 February 21, 2009
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