an acronym for either Registered Nurse, Right Now, or Real Nigga.
Registered Nurse- "Can someone call an RN?"
Right Now- "I'm over here stroking my dick rn I got lotion on my dick and I'm just stroking that shit"
Real Nigga- "Tyrone over here acting like an RN"
A gigachad with a big cock that has sex all the time.
Girl 1: Have you heard of that kid Rhys?
Girl 2: Yeah, he has a massive cock.