The sexual act of reaching into a man's pants, removing his penis, and rubbing it against the zipper of your jeans.
We started making out, then she climbed on top of me, unzipped my fly, and gave me a Jones Job. It was like rubbing my dick against a cheese grater.
To Give A Shitty or un good blow job, by a female who has given em out to everyone,
oh did you get a jones job by that girl, i heard she blows everyone