knob job

a.) Oral sex performed on a man in which the performer centers their attention just to the head of the penis. Also referred to as " polishing a door knob".
b.) Common practice of a female lowering her vagina over an automobile's gear shift knob, usually done after coming home without getting laid or having a fetish for auto-erotica.
c.) The twisting of the hand around the male penis, especially over the head, as if turning a door knob, during the performance of oral sex or masturbation.
> Judy told Cindy that she had to knob job her gear shift last night because she was so horny.
> Barbara told her date that if he didn't fuck her she would ride the gear shift(knob job).
> Sharon can't suck cock worth a shit; she a knob jobber.
> Linda jacked me off so hard last night, I thought she would tear my knob off.