The fluff or dust in which over weight men have forming in their umbilîcus.
''oh my marcus, is that bum fluff that i see in your umbilicus??''
I person who like to lick bums, mosty mens. They are regarded as scum in sociaty and should all be shot.
'Jack was a great bum bandit, he does it all the time with ashly'
After not showering for 4-5 days and having sex
"We have been camping for 5 days I am not giving you any", "c'mon baby lets go have bum sex in the tent
a person who comes to your place of residence at severely inapropriate times to eat all of your food fuck up all of your shit and then leaves when you are about to shove a fucking 12 gauge right up his ass.
god damn it alex is such a bum fuck he came to my house at dinner time all all of my food and then tha bastard left!!!
A place, usually a place by a city filled with trees, where many bums live. People who go in usally get butt raped.
Guy 1: Luis wants to go to Bum city.
Guy 2: Why so he can get butt raped?
Guy 1: I don't know he's a dumbass.
The sensation that you get on your prosterior when you put on a warm pair of boxers or underwear.
Andy got a bum rush when he got his boxers form the dryer.