Originating in British schools, this is the acting of taking another's possession without owner's consent; albeit on a smaller scale. For example, you could chore someone's detention slip (usual reply: "Why should I care? You've just chored my ticket to Hell. Thanks."), whilst you couldn't chore something larger, eg. a quarry.
The chorification of this possession is almost always accompanied with a loud, high pitched squeal of "CHORED!"
Jury member: *swipes bag* CHORED!!! *runs off*
Judge: Court adjourned on account of ... THAT nob over there.
The boys had chored enough merchandise from the shop that it was forced to close for the day.
Example 2. (In conversation)
Boy 1: "I've never seen that before, did you chore it?"
Boy 2: "Aye, I chored it from the school".