Phrases for bungling

Does anyone have any particularly interesting phrases (short or long) that convey the idea of bungling a situation or responsibility? Thanks.

Patty

dropped the ball, let down the side (British), took an oafer (baseball slang, a batter who came up 4 times, got no hits, so went 0 for 4, "oafer 4") screwed the pooch (test pilots who crashed and died), stepped in in, stepped on a rake, stepped on his dick, came a cropper, blew it, fumbled, day late and a dollar short.

From that seat of learning - London SWI - cocked up, fouled up, buggered up, messed up and screwed up - all classified under 'ups'.