WordWeb Online

1. An embarrassing mistake
   - blunder, blooper [N. Amer], bloomer, bungle, pratfall, flub [N. Amer], botch, boner, boo-boo, blue [Austral, NZ]

1. Make a mess of, destroy or ruin
   "I fouled up the dinner and we had to eat out"
   - botch, bodge [Brit], bumble, fumble, botch up, muff, blow, flub [N. Amer], screw up, ball up, spoil, muck up, bungle, fluff, bobble [N. Amer], mishandle, louse up, mess up, bugger, balls up

Derived forms: fouling up, foul-ups, fouled up, fouls up

Type of: error, fail, fault, go wrong, miscarry, mistake