Brachiator
Someone who uses sexual partners as a mode of transportation, be it literal or in the social climbing sense. Originally defining an animal who travels by swinging vine to vine, in this case they swing by something much more readily found in an urban environment: penis. Much the same as the traditional Brachiator, they rarely let go of someone before grabbing a hold of the next.
"Don't look, but Becky is checking you out HARD." "Naw, I'm good. She's a straight up Brachiator"