ball up, bollix, bollix up, bugger, bugger up, complicate, confound, confuse, cook, embrangle, entangle, foul up, fumble, garble, gum up, hash up, implicate, involve, jumble, knot, louse up, mess up, mix up, muck up, muddle, perplex, pi, play hell with, play hob with, queer, ramify, ravel, riffle, scramble, screw up, shuffle, sink, snafu, snarl, tangle, tumble