T.P.Y.F.B. = Tongue Punch Your Fart Box... This does not mean to aggressively eat out a girl. This is a saying made up in the prisonsystem for a joke when getting upset with your actual homie inside. To show him you're upset but joking about it.
Tpyfb "Shut up bro, don't make me tongue punch your fart box"
Used as a way of showing how much worse it could be. Where {NASTY} could best any name, a name beginning with N works best. For example: TPNFB - tongue punch nadenes fart box.
When used in context, one would use it this way.
"Man I just had my nuts kicked by Chuck Norris!"
Could be worse ... TPNFB!
(John) "That wild chick Sally let me TPFB!"... (Ted)"She let you do what!?" (John) "She let me tongue punch her fart box!" (Ted) "Yeah.. Thats nasty bro"