Function: intransitive verb
Date: 1649
: to stop doing something
transitive verb
1 : to do hurriedly or routinely < knocked off one painting after another>
2 : DISCONTINUE , STOP < knocked off work at five>
3 : DEDUCT < knocked off a little to make the price more attractive>
4 a : KILL < knocked off two men ⋯ on mercenary grounds ― Lewis Baker> b : OVERCOME , DEFEAT < knocked off each center of rebellion>
5 : ROB < knocked off a couple of banks>
6 : to make a knockoff of : COPY , IMITATE < knocks off popular dress designs>