n. a combination of slut and bum; someone with many annoying qualities such as stealing what isn't theirs, incessant facebook poking, and not acknowledging the fact that they are one.

definition can vary from person to person
Why does Nikhil keep poking me?? He is such a bum slut!
by bisoubisou June 25, 2006
n. inf(!) A hoor who specializes in backdoor delivery, and has become so familiar with Cadbury Lane olympics that she desires and eventually, REQUIRES, a daily dose of sodomy.
Priest: Do you, Terry, promise to turn this respectful, sweet and innocent young lady into a nasty, filthy, fusty, slimy, cummy, rotten, shitty, dirty, skanky, rancid, foul, putrid, fetid, horrible little bumslut?
Me: I do.
Priest: And do you, Germaine, promise to take a regular rectal rogering from your betrothed as and when he demands?
Bumslut: I do.
Priest: We now conclude the ceremony by explaining in graphic detail and diagram the foul, ungodly, unforgivable anal action which will tonight take place in Germaine's pink, pristine, virgin bumhole to her father.
Father: I might kill myself if you do that.
Me: Amen.
by Terry Deary August 28, 2006

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