2:) A synonym for the word "cheat" (as in: cheat in life, on a person, in a game, etc...)
3:) The act of being "full of shit"; or filling someone with shit
2:) "I got k-feded out of my alimoney because I k-fed on my sugar-mama."
3:) "John Cena tired of K-Fed's k-fed, so he STFU'd him."
I know-all lame...blah