When a sexually frustrated
male college
student takes sexual advantage of
male dorm/flat mates while they are passed out from excessive partying. This usually involves anal probing of the unsuspecting victim.
"My
ass hurts. Did you Harry Assmaster me last
night?"
"That poor
guy. He got totally Harry Assmastered last night"
"Have another drink buddy because I am going to Harry Assmaster you later."