What is Cumbum?
1.
Where the anus is full to the brim with cum!
I aint going near that cumbum its spilling out everywhere!!!!
2.
A guy who has the back of his tousers covered in either cum or a cum looking substance. He decides not to change his trousers for ages and looks like a tramp to everyone.
Ewww! Cumbum change your trousers mate. youve had those on for 4 months now!
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3.
someone with traces of cum in and around the bum; a faggot; a Lucas.
Lucas bends over for any black man who's willing to unzip... he's such a cumbum.
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4.
one with cum in their bum. or generally anyone i dont like
chris is a cumbum and sucks himself off
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