another spelling for "jokes", usually used to describe something funny that happened, a prank that was played or a something funny someone did. Usually used when the said person can't think of anything more interesting to say in reply.
Can be used as a substitute for lol.
person 1:i spent my lunchbreak making a photocopy of my head.
person 2 :jox
joker :i'm going to a fancy dress party this weekend
person: i'm bored.