When a person (usually a guy) hovers over and around another person they like in hopes that they will want to fuck them. Refers to the idea that you’re there to rescue them (I.e., a helicopter) in case of emergency (they need sex).
Dude, you’ve been spending so much time with Laura lately! Are you banging?
Nah man, we’re just friends.
Oh, so you’re helicoptering her...
