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Related to louse up: delouse
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|Verb||1.||louse 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"|
bobble, bodge, bollix, bollix up, bollocks, bollocks up, botch, botch up, bumble, bungle, flub, fluff, foul up, fuck up, mess up, mishandle, muck up, ball up, spoil, muff, screw up, fumble, blow