ball up, begrime, bemire, bemud, besmoke, bloomer, blooper, blow, bobble, bollix, bollix up, bonehead play, boner, boo-boo, boob stunt, boot, bugger, bugger up, complicate, confound, confuse, cook, dirt, dirty, dirty up, drop a brick, drop the ball, duff, dumb trick, dust, embrangle, entangle, fluff, fool mistake, foozle, foul-up, foul up, fumble, garble, goof, grime, gum up, hash up, howler, implicate, involve, jumble, knot, louse-up, louse up, mess up, mire, mix up, muck, muddle, muddy, perplex, pi, play hell with, play hob with, pratfall, pull a boner, queer, ramify, ravel, riffle, scramble, screamer, screw-up, screw up, shuffle, sink, slime, smoke, snafu, snarl, snarl up, soot, tangle, tumble