- 1knacker somebody to make somebody very tired synonym exhaust
- 2knacker somebody/something to injure somebody or damage something I knackered my ankle playing football. Word Origin late 16th cent. (originally denoting a harness-maker, then a slaughterer of horses): possibly from obsolete knack ‘trinket’. The word also had the sense ‘old worn-out horse’ (late 18th cent.). It is unclear whether the verb represents a figurative use of “slaughter”, or of “castrate”.
BrE BrE//ˈnækə(r)//; NAmE NAmE//ˈnækər//(British English, slang)Verb Forms present simple I / you / we / they knacker
BrE BrE//ˈnækə(r)//; NAmE NAmE//ˈnækər//he / she / it knackers
BrE BrE//ˈnækəz//; NAmE NAmE//ˈnækərz//past simple knackered
BrE BrE//ˈnækəd//; NAmE NAmE//ˈnækərd//past participle knackered
BrE BrE//ˈnækəd//; NAmE NAmE//ˈnækərd//-ing form knackering
BrE BrE//ˈnækərɪŋ//; NAmE NAmE//ˈnækərɪŋ//