When someone is getting F***ed in the ass and the man cums. xP
person 1- i has such a horrible night...
person 2- why?
person 1- cause i totally got full of butt fluff!
person 2- aweh man that sux!
The hair grown on the face of a pubescent teenager, young man or a eshay who has never matured.
"That's not a beard champ, that's bum fluff "
Bum fluff is someone with stinky farts and uses all your paint
“Oi ya bum fluff stop using all me tins brah”
When you hold your head set microphone up to your posterior and expel noxious gas from your anus.
That guy just fluff farted us!
Unexplained fluff found on oneself either on the day of or immediately after ones birthday, usually in the form resembling a cloud
Wow my birthday last night was heavy…I just woke up and why tf is there birthday fluff in my belly button???
When one breaks wind and the lint collected around the anus is blown out like a dandelion
Errol has a real bottom fluff issue at the moment, that lint is lingering around longer than the smell of her actual fluff, it’s terrible for my hay fever
The time that it anus expands so rapidly that u poop from your mouth
Damn bro i just experienced a fluff time