bollocks up

Verb

Meaning

make a mess of, destroy or ruin

Source: WordNet

bumble muff bungle blow fumble spoil fluff bollocks bobble botch bodge mishandle ball up foul up flub

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order better correct improve restore repair

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fail miscarry go wrong

I botched the dinner and we had to eat out Source: Internet

the pianist screwed up the difficult passage in the second movement Source: Internet