When you take a bottle of shampoo and stick it in your ass, squeeze as much of it into your rectum then blow it all over some bitches hair. Resulting in a mixture of shit, shampoo, and hair.
So you wanna come over and I'll give you a good ole fashioned Shampoop.
by Robo January 03, 2005
a girl named emma who claims she slipped in the shower and got a shampoo bottle stuck in her ass when in reality she put it up there on purpose for an orgasmic experience
Emma was showering and got lonely so she stuck a head & shoulders bottle up her ass thus performing the shampoop
by beeb0 August 21, 2006