1 definition by chief thundercock
When you see a girl that is so repulsive that your dick shrinks back up into your body, thus creating a vagina where your penis normally belongs.
Jeremy: "Damn did you know that Mark is going out with Hope?"
Oliver: "Yea I know I got a Peginus when he introduced her to me!"
Oliver: "Yea I know I got a Peginus when he introduced her to me!"
by chief thundercock May 20, 2011