When a girl figuratively and mentally grabs a man by his cock- forcing him to drop everything in order to pursue her. The male makes decisions with his penis. In the workplace, this results in the male fantasizing over a female coworker who has mindcocked (sexually manipulated) him.
A term that rose to popularity after PDiddy said in the spring 2010 movie "Get him to the greek". Herds of sheep then began to say it to describe the summer 2010 movie "Inception".
PDiddy: "I'm mindfucking you right now"
Jonah Hill: "I hope you're wearing a condom because I have a dirty mind"
Random Guy/Sheep: "Dude, Inception was such a mindfuck!"
YOU: " I KNOW IVE READ 30 FACEBOOK STATUS'S SAYING I GOT MINDFUCKED"