Used as a substitute for fuckin' when it isn't appropriate as someone might be offended or as just a way to show you are cool.

Can be conjugated differently such as Fraffin', Fraff, Fraffalicious ect...
I was walking by this priest once when I stubbed my toe and yelled out Fraffin' Fraff for Fraffs sake and the priest smiled at me as if I had done nothing wrong!
by Caesarean! August 4, 2009
Get the Fraffin' mug.