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English definition of “bollocks sth up”

bollocks sth up

phrasal verb with bollocks     /ˈbɒl.əks/ US  /ˈbɑː.ləks/ verb UK offensive
to spoil something by making mistakes: They completely bollocksed up the game. Try not to bollocks it up this time!
(Definition of bollocks sth up from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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