knock off (3) Informal
Meaning: to murder somebodySynonym: kill, bump off (informal), do away with (informal), do in (informal)
- knock sb off Did you hear about the insurance salesman who took out policies on his customers and then knocked them off in order to collect the payouts?
- knock off sb Tony reckons a mafia hitman will knock off anyone who talks to the police.
- be/get knocked off by sb The police said the girl was probably knocked off by the guy she was with when she left the bar.
After Bob had knocked off his wife, he