A knight who wields his pork sword for his own pleasure, not for fair maidens; a wanker
Keith's the biggest owner operator I've ever met
A hooker that has a mattress strapped to her back- joke referring to an owner-operator truck driver
Guy 1: Man, have you gotten any owner operator lately?
Guy 2: What?
Guy 1: You know, a hooker with a mattress strapped to her back.