knock someone off

knock someone off

tv. to kill someone. (see also bump someone off.) The mob knocked the witnesses off.
See also: knock, off
References in periodicals archive ?
An Environment Agency spokesman said just six inches of fast-flowing water is enough to knock someone off their feet and a mere cup-full can damage a vehicle's engine.
Among the obvious dangers of flood water, the agency said that just six inches of fast-flowing water is enough to knock someone off their feet and a mere cup-full can damage a vehicle's engine.
Ideas are in the air, and imitation is indeed the sincerest form of flattery -- unless you deliberately knock someone off.
For one sequence filmed on top of the Eurostar in Mission:Impossible, star and producer Tom Cruise wanted the wind effect to be so powerful it could knock someone off the train.
Mr Slocombe said, 'I saw a guy knock someone off their feet.
McNab revealed: "We'd sit in back rooms of restaurants or bars plotting jobs, hits, how to knock someone off.