A philly flim flam is when you take a ballon filled with nitrous and while pinching off the top of the balloon you apply a liberal amount of cocaine.
Then you do the balloon straight up your nose.
enjoy.
From the streets of L.A came the well known gangster Flimbs Nowlands, and after tearing up the mean streets with nothing but a moped and a carton of ribena, Mr Flimbs ripped a whole new hole in the urban slang melee with flimby roughly meaning :good, jolly good, excellent etc.
Local home boy turns to pimp daddy and says: "Damn did you see the game last night?"
Pimp Daddy replies:"No, was it whack?"
Home boy replies:"That shit was flimby yo!"