mess up

CIDE DICTIONARY

mess up, v. t. 

•  To make a mess{5} of; to confuse, disorder, or muddle; to muss; to jumble; to disturb.  [PJC]
•  To botch{3}; to bungle.  [PJC]

THESAURUS

mess up

ball up, befoul, benasty, bitch, bitch up, blur, bobble, bollix, bollix up, bonehead into it, bugger, bugger up, clutter, complicate, confound, confuse, contaminate, cook, corrupt, damage, defile, deform, derange, disarrange, disarray, discompose, dishevel, dislocate, disorder, disorganize, distort, disturb, drop a brick, embrangle, entangle, flub, fog up, foul, foul up, goof, goof up, gum up, hash up, implicate, infect, involve, jumble, knot, litter, louse up, mar, mess, misarrange, mix up, muck, muck up, mucker, muddle, muff, muss, muss up, nasty, obfuscate, obscure, perplex, play hell with, play hob with, pollute, queer, ramify, ravel, ruffle, ruin, rummage, rumple, scatter, screw up, sink, snafu, snarl, snarl up, spoil, sully, taint, tangle, tarnish, tousle, unform, unsettle, unshape, upset