Define Bum Fluff Meaning

Facial hair that is so sparse it can be considered as good as the fluff on one's bottom

Bum fluff is literally sparse and whispy facial hairs on an adolescent boy, (Or Asian girl)... Tee hee! Which resemble peach fuzz, under-bed lint, gossimar threads... or any fine downy substance.

When an adolescent boy first grows facial hair it looks all wispy and yucky. This hair resembles the fluffy hair on some people's bums. So shave it off or you can look ridiculous. Girls really hate it. I'm a girl!

So shave it off and get a REAL beard started!

Hair on the chin that nobody likes!

like peach fuzz but on your ass

Often mistaken with anal fluff (different thing etirely)... After a period of certain unhygienically living, a small amount of dust, cat hairs (dog hairs. human hair.. whatever) and sweat congeals in the belly button area of the body and stays there until one either washes (thus terminating the period of unhygienically living and smell) or the lucky other half (or embarassed and soon to fail one night stand) picks it out and unvariably smells it.... it smells of bum.

Originating from leprechaun rectums in south ireland, bum fluff is the fibres of sweaty underwear that sticks to the scrotum and "Batty criece" when a respectable amount of sweat has been produced that day. On a hot day, people may be seen pulling their underwear out of the arse with their hands, this usually occurs when bum fluff is present.

The pointless and inevitably very dusty crap plastered onto the walls of 'with it' peoples houses
Interoir designers say it is fashionable, I say it is a piece of shit

having hair inbetween ur bum cheeks

the fluff off a bum