definition of
knock off

[1] #1 knock off v. get rid of (someone who may be a threat) by killing; "The mafia liquidated the informer"; "the double agent was neutralized". wn

[2] #2 knock off v. cut the price of. wn

[3] #3 knock off v. take by theft; "Someone snitched my wallet!". wn

[4] #4 knock off v. write quickly; "She dashed off a note to her husband saying she would not be home for supper"; "He scratched off a thank-you note to the hostess". wn

[5] #5 knock off v. stop pursuing or acting; "drop a lawsuit"; "knock it off!". wn