knock off

Short definition from Wiktionary

Verb

1. 1
   To halt one's work or other activity.
2. 2
   To kill.
3. 3
   To kill: To defeat.
4. 4
   To remove, as a discount or estimate.
5. 5
   To rob.
6. 6
   To make a copy of, as of a design.
7. 7
   To assign (an item) to a bidder at an auction, indicated by knocking on the counter.
8. 8
   To have sex with (a woman).
9. 9
   To accomplish hastily.
10. 10
    To remove (something or someone) by hitting.

Noun

1. 1
   Nonstandard form of knockoff.
2. 2
   Alternative spelling of knockoff.