bugger up
verbUK /ˈbʌɡə(ɹ)ʌp/ · US /ˈbʌɡəɹ ʌp/
1
Australia, Ireland, New Zealand, UK, Informal To break or spoil something, or make it inoperative, useless etc.
- I've buggered up the sudoku somehow and can't finish it.
- Well, he only buggers up one sentence, and that's the first one. He says, 'Shut up, blek.' But from that point on, it was OK because I helped him with it. If I'd been there, I would have told him to say, 'Shut up, black', exactly the same as an American accent.2016 March 15, David Dale, “John Jarratt talks new show Territory Cops and a murderous return in Wolf Creek”, in The Sydney Morning Herald:
2
Australia, Ireland, New Zealand, UK, Informal To injure or harm (someone).