The Doosh is a very conscientious superhero, who always brushes his teeth and helps old ladies across the street. Out of a very strong sense of duty to the new generation, he teaches a superheroing class at Gossamer City Community College. He named himself after the noise he makes when he flies off the ground. He has no idea why some people keep snickering when he introduces himself.
Retread, Frank, and Lid-X were all students in The Doosh’s class.