A term created by author David Garrett to describe the vagina of one unfortunate Gardevoir, whom is promptly raped by her trainer, a young man named David. If you must read The Pokemon Story, look it up on Topless Robot.
Did you see that Pikachu? You could totally see it's pokevagina!
He kissed hard and deep as he carefully fit his shitty dick into her pokevagina (from The Pokemon Story)