The Collaborative International Dictionary of English v.0.48:

Flam \Flam\ (fl[a^]m), n. [Cf. AS. fle['a]m, fl[=ae]m,
   flight. [root]84 . Cf. Flimflam.]
   A freak or whim; also, a falsehood; a lie; an illusory
   pretext; deception; delusion. [Obs.]
   [1913 Webster]

         A perpetual abuse and flam upon posterity. --South.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Flam \Flam\, v. t. [imp. & p. p. Flammed; p. pr. & vb. n.
   Flamming.]
   To deceive with a falsehood. [Obs.]
   [1913 Webster]

         God is not to be flammed off with lies.  --South.
   [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

125 Moby Thesaurus words for "flam":
   ballot-box stuffing, balls, baloney, beat, beguile of, bilk,
   blague, bosh, bull, bullshit, bunco, bunk, bunkum, burn,
   cardsharping, cheat, cheating, chisel, chouse, chouse out of,
   claptrap, cock-and-bull story, cog, cog the dice, con, cozen,
   cozenage, crap, crib, deception, defraud, diddle, diddling,
   dishonesty, do in, do out of, dodge, euchre, exaggeration, eyewash,
   fairy tale, fake, fakement, falsehood, falsity, farfetched story,
   farrago, fib, fiction, finagle, fish story, fishy transaction,
   fleece, flimflam, fob, fraud, fraudulence, fraudulency, fudge,
   gammon, gerrymandering, ghost story, gouge, graft, grift, gull,
   gyp, gyp joint, half-truth, have, hoax, hocus, hocus-pocus,
   hogwash, hoke, hokum, hooey, humbug, humbuggery, illicit business,
   imposition, imposture, jiggery-pokery, legal fiction, lie,
   little white lie, mendacity, moonshine, mulct, pack the deal,
   phony, pigeon, pious fiction, practice fraud upon, prevarication,
   put-on, racket, rip-off, rook, scam, screw, sell, sell gold bricks,
   sham, shave, shortchange, slight stretching, spoof,
   stack the cards, stick, sting, story, swindle, take a dive, tale,
   tall story, tall tale, taradiddle, thimblerig, throw a fight,
   trumped-up story, untruth, victimize, white lie, yarn