The Collaborative International Dictionary of English v.0.48:

Bulldoze \Bull"doze`\, v. t. [imp. & p. p. Bulldozed; p. pr. &
   vb. n. Bulldozing.]
   To intimidate; to restrain or coerce by intimidation or
   violence; -- used originally of the intimidation of negro
   voters, in Louisiana. [Slang, U.S.]
   [1913 Webster]

WordNet (r) 3.0 (2006):

bulldoze
    v 1: flatten with or as if with a bulldozer

Moby Thesaurus II by Grady Ward, 1.0:

152 Moby Thesaurus words for "bulldoze":
   assault, be imminent, bear, bear upon, beat down, blackjack, blank,
   blow down, bludgeon, bluster, bluster out of, boost, bounce, break,
   break down, bring down, browbeat, buck, bull, bully, bullyrag,
   bump, bump against, bunt, burn down, butt, butt against, cast down,
   castrate, chop down, clamp down on, clobber, coerce, comminate,
   compel, cow, cram, cream, crowd, cut down, daunt, defeat utterly,
   demoralize, denounce, despotize, dig, domineer, domineer over,
   dragoon, drive, elbow, enslave, fell, flatten, force, forebode,
   goad, grind, grind down, harass, harry, hector, henpeck, hijack,
   huff, hurtle, hustle, intimidate, jab, jam, jog, joggle, jolt,
   jostle, keep down, keep under, knock down, knock over, level,
   look threatening, lord it over, lower, menace, mow down, nudge,
   oppress, overawe, overbear, overmaster, override, overwhelm, paste,
   pile drive, poke, press, press heavy on, prod, prostrate,
   pull down, punch, push, ram, ram down, rase, rattle, raze, repress,
   ride over, ride roughshod over, run, run against, schmear, shake,
   shanghai, shellac, shoulder, shove, shut out, skunk, smash, smear,
   snow under, steamroller, stress, strong-arm, subjugate, suppress,
   systematically terrorize, take down, tamp, tear down, terrorize,
   threaten, throw down, thrust, trample down, trample upon,
   tread down, tread upon, tyrannize, tyrannize over, unman,
   use violence, utter threats against, walk all over, walk over,
   warn, weigh heavy on, whelm, whitewash, whomp, whop