to make a mess or cockup
1Cockup — to make a mistake; to go wrong; make a mess of; ruin: You really cocked that up …
2cockup — Australian Slang to make a mistake; to go wrong; make a mess of; ruin: You really cocked that up …
3British slang — circuBritish slang is English language slang used in the UK. Slang is informal language sometimes peculiar to a particular social class or group and its use in Britain dates back to before the 16th century. The language of slang, in common with… …
4List of British words not widely used in the United States — Differences between American and British English American English …
