the fluff that gathers in your anus after a long day of sweating
dude you got bumfluff on your face
de yar mudder 11 juin 2006
In gaming terms, Bumfluff would be the term used for cheaters. People who are shite and need cheats so they can win.
de Cheese 2 juillet 2003
Fluff from one's ass; usually blue.
"Dude, you got bumfluff on your face..."
de -Mikey G- 12 février 2003