"muffing" in the verb sense

1. muff

fail to catch, as of a ball

2. botch, bodge, bumble, fumble, botch up, muff, blow, flub, screw up, ball up, spoil, muck up, bungle, fluff, bollix, bollix up, bollocks, bollocks up, bobble, mishandle, louse up, foul up, mess up, fuck up

make a mess of, destroy or ruin

"I botched the dinner and we had to eat out"

"the pianist screwed up the difficult passage in the second movement"

Source: WordNet® (An amazing lexical database of English)

Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.

View WordNet® License