fasnerfis 

The little (or large) ball of lint fluff which collects in a persons belly button

Man you could knit a sweater with that much fasnerfis!

fasnerfis by moose May 5, 2004

Fasnarfin 

(fuh-snar-fin): a term describing something unbelievably cool or funny. Soon to replace "lol"

abbreviated as "ff" for texting purposes.

"did you watch Jay Leno last night? He was hilarious!"

"fasnarfin, man. It was a laugh riot!"

Fasnarfin by fancypants998 April 5, 2009

Fasterisking

The (often irritating) habit of swearing online but inserting asterisks in place of letters thereby trying to give the (false) impression of self-control.

"I wish they would all f*ck off", "boll*cks" and "b*gger" are all examples of fasterisking.

Fasterisking by arch arrow March 18, 2011