bugger something up

Từ điển Oxford Advanced Learner 8th

ˌbugger sthˈup derived
(BrE, taboo, slang)to do sth badly or spoil sth
•I buggered up the exam.
•Sorry for buggering up your plans.  A more polite, informal way of saying this is foul sth up, mess sth up or bungle sth.
Main entry: ↑bugger_derived