Scampoo

n - shampoo that has been tampered with and filled in with different substances. Usually done on April Fool's Day as a prank.

Guy: I'm going to take a shower
Girl: (giggles) have fun
Guy: ok?

Guy: ow shit you put peanut butter in my shampoo? You gave me scampoo?

by Gorillafaceoff April 16, 2011