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.
"Ooh it's hot today isn't it?" *pulls underwear from bum crack*
-or-
"I think i better have a shower, my bum is currently covered in smelly wool."
-or-
"I think i better have a shower, my bum is currently covered in smelly wool."
by Chris Lawlor June 21, 2004

by Jammmmmeeh December 4, 2009

When a guy is having sex with his girl while she is sleeping and he reaches his limit and pulls out to cum on her face. Then after he cums on her face, he places an actual marshmallow on her face with the cum to prove how strong and sticky it is
Man 1: Well, someone got some marshmallow fluff last night!
Man 2: "You could say I left my girl a little present on her face while she was sleeping."
Man 2: "You could say I left my girl a little present on her face while she was sleeping."
by Kathryn Santini April 17, 2016

The growth of hair aroung the arse area which causes such an itchyness that you end up walking like you've shit youself!
by Scottish Kaz October 20, 2003

diving into a sheeps ass; male penis penitrating a sheeps anus; someone who does a running star into a sheeps butt.
by shemale October 21, 2005

a fluff job is when someone trys to have sex with a soft toy. eg - teddy bears etc.
most likely afterwards finding bits of fluff from the toy in their mouth.
most likely afterwards finding bits of fluff from the toy in their mouth.
by Reece McElroy August 22, 2007

by toluco February 15, 2010
