In addition to being associated with the other definitions on this page, a Fuck-
rag also refers to
anything that you use to clean yourself after masturbation (tissue, sock, washcloth, etc.) And like the other definitions expressed here, it is also a venomous
insult.
For example:
"Greg, did you just put a dent and scratches on my new
car? I just got it yesterday, and it wasn't there before."
Greg: "Oh, yeah, I forgot to tell you! Me and the guys went out to get beers last night; I was a little buzzed and kinda sorta jumped a curb and ran into some dude's mailbox...Sorry, man."
"Greg, you stupid Fuck-rag! The
car was a RENTAL!!! And it's in MY NAME!!! How the
hell am I gonna explain this to the insurance company, the
car-rental place, AND the asshole whose mailbox you ran over??!!"
Greg: "Sorry, dude." *pops open can of
beer and takes it to the head*