The Collaborative International Dictionary of English v.0.48:
Flimflam \Flim"flam\, n. [Cf. Flam.] A freak; a trick; a lie. --Beau. & Fl. [1913 Webster]WordNet (r) 3.0 (2006):
flim-flam v 1: deceive somebody; "We tricked the teacher into thinking that class would be cancelled next week" [syn: flim-flam, play a joke on, play tricks, trick, fob, fox, pull a fast one on, play a trick on]