1. A genital enlargement device. Term has its roots in an aparent case of dyslexia, when Sean Connery misread the category "The Pen is Mightier" on a celebrity charity edition of Jeopardy.
See also "Whore Semen"
Sean Connery: I've got to ask you about the Penis Mightier.
Alex Trebek: What? No. No, no, that is The Pen is Mightier.
Sean Connery: Gussy it up however you want, Trebek. What matters is does it work? Will it really mighty my penis, man?
Alex Trebek: It's not a product, Mr. Connery.
Sean Connery: Because I've ordered devices like that before - wasted a pretty penny, I don't mind telling you. And if The Penis Mightier works, I'll order a dozen.
Alex Trebek: It's not a Penis Mightier, Mr. Connery. There's no such thing!
Nicholas Cage: Wait, wait, wait.. are you selling Penis Mightiers?
Alex Trebek: No! No, I'm not.
Sean Connery: Well, you're sitting on a gold mine, Trebek!