when two men intertwine their penises like a caduceus
as mentioned on "the office (908)" while angela and dwight question toby on gayness after angela comes to grips with the fact that oscar has been having an affair her husband, the senator.
angela: what is it called when two men intertwine their penises like the snakes on the medic alert bracelet?
toby: wow, uh?
angela: is it called red vining?
dwight: is it called red vining? we heard it was called red vining?
angela: people red vine?
1. in the middle of sex, john says to his gay partner, bill:
john: hey bill, can we red vine tonight?
bill: sure, just stay soft
2. pick-up exchange at gay bar
john: what's your sign?
john: i want to take your twizzler and do some red vining
bill: sorry, but i don't think your penis is long enough