bumbak
Someone fond of showing others his bum crack, then rubbing sand in it.
Look at that hairy bumbak.
bumbak
A guy who is seen to get visibly upset if a member of the opposite sex is openly attracted to one of his friends. Also known as fucking cunt.
<a bumbak> so you like him?
<girl> yes
<a bumbak> Fuck you
<girl> yes
<a bumbak> Fuck you