2.(v.)To purposely become enticing to a male to the point of giving him a hardon, or in most cruel cases, blue balls, with no intention of follow through; to lead a man on.
2."Dude, this girl totally cockteased me just now. I had to pour ice down my pants."
Cock teases are typically thought to be the minions of a larger, more evil force.
Stupid Sucker: "I spent 50 bucks on that cock tease and she won't even return my calls."