Rhino Rider
Negatively, someone who likes to ride cock (rhino). Specifically a gay person; fag; homosexual.
Bob: "Hey look, isn't that Steve?"
Fred: "Yeah, I heard he was a rhino rider."
Bob: "Well, I always thought he was a bit queer and that would explain weird kink in his step."
Fred: "Yeah, I heard he was a rhino rider."
Bob: "Well, I always thought he was a bit queer and that would explain weird kink in his step."