Top Definition
A disease by which is characterized by the wanting of never to grow. One who wishes to remain a child forever would be infected by peterpanitis. This disease if often contracted during periods of great social adjustment, such as the move from middle school to highschool, or going from highschool to college.
Liz: I don't want to grow up. I wish I could stay in highschool forever and never have to worry about a career or bills or anything.

Trevor: Sounds like you have a case of peterpanitis.
by PohTayToez August 08, 2007

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