The Collaborative International Dictionary of English v.0.48:

Bash \Bash\, v. t. & i. [OE. baschen, baissen. See Abash.]
   To abash; to disconcert or be disconcerted or put out of
   countenance. [Obs.]
   [1913 Webster]

         His countenance was bold and bashed not. --Spenser.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Bash \Bash\, v. t. [imp. & p. p. Bashed; p. pr. & vb. n.
   Bashing.] [Perh. of imitative origin; or cf. Dan. baske to
   strike, bask a blow, Sw. basa to beat, bas a beating.]
   To strike heavily; to beat; to crush. [Prov. Eng. & Scot.]
   --Hall Caine.
   [1913 Webster]

         Bash her open with a rock.               --Kipling.
   [Webster 1913 Suppl.]

The Collaborative International Dictionary of English v.0.48:

Bash \Bash\, n.
   1. a forceful blow, especially one that does damage to its
      target.
      [PJC]

   2. a elaborate or lively social gathering or party.
      [PJC]

V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006):

BASH
       Bourne-Again SHell (Unix, Shell)


Moby Thesaurus II by Grady Ward, 1.0:

77 Moby Thesaurus words for "bash":
   bang, bat, batter, beat, beating, belt, biff, blow, blowout, bonk,
   bruise, buffet, bung, bung up, chop, clap, clip, clobber, clout,
   clump, coldcock, contuse, crack, cut, dash, deal, deal a blow,
   deck, dig, dint, drub, drubbing, drumming, fetch, fetch a blow,
   fusillade, hit, hit a clip, jab, knock, knock cold, knock down,
   knock out, let have it, lick, maul, paste, pelt, plunk, poke,
   pound, punch, rap, shindy, slam, slog, slug, smack, smash, smite,
   snap, soak, sock, strike, strike at, stroke, swat, swing, swipe,
   tattoo, thump, thwack, wallop, whack, wham, whop, yerk