muck up

muck up ( up)

     v 1: make a mess of, destroy or ruin [syn: botch, bumble, fumble,
           botch up, muff, blow, flub, screw up, {ball
          up}, spoil, bungle, fluff, bollix, bollix up,
          bollocks, bollocks up, bobble, mishandle, {louse
          up}, foul up, mess up, fuck up]
     2: soil with mud, muck, or mire; "The child mucked up his shirt
        while playing ball in the garden" [syn: mire, muck, mud]