WordNet (r) 3.0 (2006):

bobble
    n 1: the momentary juggling of a batted or thrown baseball; "the
         second baseman made a bobble but still had time to throw
         the runner out"
    v 1: make a mess of, destroy or ruin; "I botched the dinner and
         we had to eat out"; "the pianist screwed up the difficult
         passage in the second movement" [syn: botch, bodge,
         bumble, fumble, botch up, muff, blow, flub,
         screw up, ball up, spoil, muck up, bungle,
         fluff, bollix, bollix up, bollocks, bollocks up,
         bobble, mishandle, louse up, foul up, mess up,
         fuck up]

Moby Thesaurus II by Grady Ward, 1.0:

122 Moby Thesaurus words for "bobble":
   bad job, bevue, bitch, bitch up, bloomer, blooper, blow, blunder,
   bob, boggle, bollix, bonehead into it, bonehead play, boner,
   boo-boo, boob stunt, boot, botch, bounce, bugger, bugger up, bump,
   bungle, careen, chatter, clumsy performance, cobble, coggle,
   dangle, didder, dither, drop a brick, drop the ball, duff,
   dumb trick, error, etourderie, falter, flub, fluctuate, fluff,
   flutter, fool mistake, foozle, foul up, foul-up, fumble, gaucherie,
   goof, goof up, grimace, gum up, hash, hash up, have an ague,
   howler, hustle, jactitate, jar, jerk, jig, jigget, jiggle, jog,
   joggle, jolt, jostle, jounce, jump, librate, louse up, louse-up,
   lurch, mess, mess up, miscue, mistake, muck up, muck-up, muff,
   nutate, off day, oscillate, pendulate, pitch, pratfall,
   pull a boner, quake, quaver, quiver, reel, resonate, rictus, rock,
   roll, sad work, screamer, screw up, screw-up, shake, shiver, shock,
   shudder, slip, stumble, swag, sway, swing, tic, toss, tremble,
   tremor, trip, twitch, twitter, vacillate, vibrate, wag, waggle,
   wave, waver, wobble