WordWeb Online

1. The complete mismanagement or mishandling of a situation
   "a typical bureaucratic screwup"

1. Make a mess of, destroy or ruin
   "the pianist screwed up the difficult passage in the second movement";
   - botch, bodge [Brit], bumble, fumble, botch up, muff, blow, flub [N. Amer], ball up, spoil, muck up, bungle, fluff, bobble [N. Amer], mishandle, louse up, foul up, mess up, butcher, goof up, balls up, cock up [Brit]
    
2. Make more intense
   "Emotions were screwed up";
   - heat up, hot up [Brit]
    
3. Screw or turn higher
    
4. Twist into a strained configuration
   "screw up one's face"

Derived forms: screwed up, screwing up, screwups, screws up

Type of: compound, deepen, fail, go wrong, grimace, heighten, intensify, make a face, miscarry, misdirection, mismanagement, pull a face, screw