1 definition by Salad Sister

Head pigeons

A serious, serious, illness involving having pigeons on one's head. The cure has proven to be elusive and remains highly contagious.

Ms. Bitters: There is a pigeon on your head. You've got Head pigeons. Get to the nurse before they spread to the other children!
Zim: Yes, Ms. Bitters.

by Salad Sister December 16, 2009