Top definition
A highly prevalent subspecies of the cosmetician family, which is characterized by it's robust physical stature, known colloquially as the fat hairdressers. Often seen wearing mostly black.
This morning I witnessed the migration of a group of immature cosmopotamuses as they navigated their way down the alley to the hair dresser school.
by boobybobbler January 14, 2010
Get the mug
Get a cosmopotamus mug for your Uncle Jerry.