Definitions by Kris-o

F.F.S.S. 

Full of Fucking Shit and other Stuff.

Someone who has no idea what they are talking about, and they talk constant shit. These people have nothing better to do than rag on the innocent.

Sara is so F.F.S.S. because she talks about her 'friend' Melissa behind her back.

F.F.S.S. by Kris-o March 2, 2006