What does "chop" mean?

Additional senses

1. 2.To seize or devour greedily; -- with up. [Obs.] Upon the opening of his mouth he drops his breakfast, which the fox presently chopped up. L'estrange.
2. 3.To make a quick strike, or repeated strokes, with an ax or other sharp instrument.
3. 4.To do something suddenly with an unexpected motion; to catch or attempt to seize. Out of greediness to get both, he chops at the shadow, and loses the substance. L'Estrange.
4. 5.To interrupt; -- with in or out. This fellow interrupted the sermon, even suddenly chopping in. Latimer.
5. 6.To barter or truck.
6. 7.To exchange; substitute one thing for another. We go on chopping and changing our friends. L'Estrange. To chop logic, to dispute with an affected use of logical terms; to argue sophistically.
7. 8.To purchase by way of truck.
8. 9.(Naut.) To vary or shift suddenly; as, the wind chops about.
9. 10.To wrangle; to altercate; to bandy words. Let not the counsel at the bar chop with the judge. Bacon.
10. 11.A change; a vicissitude. Marryat.
11. 12.To crack. See Chap, v. t. & i.
12. 13.The act of chopping; a stroke.
13. 14.A piece chopped off; a slice or small piece, especially of meat; as, a mutton chop.
14. 15.A crack or cleft. See Chap.
15. 16.A jaw of an animal; -- commonly in the pl. See Chops.
16. 17.A movable jaw or cheek, as of a wooden vise.
17. 18.The land at each side of the mouth of a river, harbor, or channel; as, East Chop or West Chop. See Chops.
18. 19.Quality; brand; as, silk of the first chop.
19. 20.A permit or clearance. Chop dollar, a silver dollar stamped to attest its purity. -- chop of tea, a number of boxes of the same make and quality of leaf. -- Chowchow chop. See under Chowchow. -- Grand chop, a ship's port clearance. S. W. Williams.