the fluff that gathers in your anus after a long day of sweating
dude you got bumfluff on your face
додав yar mudder 11 Червня 2006
In gaming terms, Bumfluff would be the term used for cheaters. People who are shite and need cheats so they can win.
додав Cheese 02 Липня 2003
Fluff from one's ass; usually blue.
"Dude, you got bumfluff on your face..."
додав -Mikey G- 12 Лютого 2003