Jaffed can literally replace any word you want.
I jaffed Johnny a fiver. I jaffed all over her. After that spliff I was so jaffed. That strike was a fucking jaffer by Robbie on Sunday.
by YungMilo January 23, 2017
To forcefully insert.
Gav jaffed his cock into the floppy drive.
by matthx January 31, 2006