Pastusky

Dean: Mom? Do you know what a pastusky bug is?
Me: Uh, no.
Dean: Well, the pastusky bug is a little bug and it goes in your thumb here (points to thumb) and it travels up your arm and your body into your brain (emphasis his) and you know what it does? It puts the think in your brain. An' then? After it puts the think in your brain, it goes back down your body and out of your thumb and it evacerates. It does! It just disappears!