While having sex doggie style, you grab the wrists of your partner and pull back while thrusting at the same time causing them to suck in as their face hits the ground
"Tom really showed Helen what it means to be a manhoover last night"
A man who constantly gazes upon other men with lust in his heart.
Reese: Why are you looking at those men?
Arjuna: Because I LIKE looking at men.
Reese: You know what that makes you then, don't you?
Arjuna: What?
Reese: A MANLOOKER!
Boys who enjoy yaoi (a genre in Japan that contains sexual and/or romantic relations between two men); literally translates to "rotten boy"; corresponding female : fujoshi