The Collaborative International Dictionary of English v.0.48:

Boodle \Boo"dle\, n. [Origin uncertain.]
   1. The whole collection or lot; caboodle. [Low, U. S.]
      --Bartlett.
      [1913 Webster]

   2. Money given in payment for votes or political influence;
      bribe money; swag. [Polit. slang, U. S.]
      [1913 Webster] Boogeyman

WordNet (r) 3.0 (2006):

boodle
    n 1: informal terms for money [syn: boodle, bread,
         cabbage, clams, dinero, dough, gelt, kale,
         lettuce, lolly, lucre, loot, moolah, pelf,
         scratch, shekels, simoleons, sugar, wampum]
    2: a gambling card game in which chips are placed on the ace and
       king and queen and jack of separate suits (taken from a
       separate deck); a player plays the lowest card of a suit in
       his hand and successively higher cards are played until the
       sequence stops; the player who plays a card matching one in
       the layout wins all the chips on that card [syn: Michigan,
       Chicago, Newmarket, boodle, stops]

Moby Thesaurus II by Grady Ward, 1.0:

86 Moby Thesaurus words for "boodle":
   beat, bilk, blackmail, blunt, bomb, booty, brass, bread, bribe,
   bribe money, bucks, bundle, cabbage, campaign contribution,
   campaign fund, chips, chisel, chouse, cozen, defraud, diddle,
   dinero, do, dough, flimflam, gelt, gilt, graft, gratification,
   gratuity, grease, green, green stuff, haul, hot goods, hush money,
   jack, kale, loot, mazuma, mint, moolah, mopus, nepotism,
   oil of palms, ointment, oof, ooftish, packet, payoff, payola,
   perks, perquisite, pickings, pile, plunder, pork barrel, pot,
   prize, protection, public till, public tit, public trough, rhino,
   rocks, roll, shekels, simoleons, slush fund, sop, spoil, spoils,
   spoils of office, spoils system, spondulics, squeeze, stealings,
   stolen goods, sugar, swag, take, the needful, till, tin, wad,
   wampum