WordNet (r) 3.0 (2006):

toss out
    v 1: throw or cast away; "Put away your worries" [syn:
         discard, fling, toss, toss out, toss away, chuck
         out, cast aside, dispose, throw out, cast out,
         throw away, cast away, put away]

Moby Thesaurus II by Grady Ward, 1.0:

71 Moby Thesaurus words for "toss out":
   ad-lib, bat out, boot out, botch, bounce, bungle, cast, cast out,
   chuck out, cook up, dash off, defenestrate, detrude, discard,
   discharge, do anyhow, do by halves, do carelessly, do offhand,
   eject, exclude, expel, extemporize, extrude, fake, fake up,
   fudge up, give the hook, heave out, improvisate, improvise,
   jettison, junk, jury-rig, kick downstairs, kick out, knock off,
   knock out, knock together, lash up, make up, obtrude, oust, patch,
   patch together, patch up, play by ear, pound out, put out, reject,
   remove, rough out, roughcast, roughhew, scrap the plan, slap up,
   strike off, throw away, throw off, throw out, throw overboard,
   throw together, thrust out, toss off, toss together, trifle with,
   turn out, vamp, whip up, whomp up, wing it