gizz mopper 

1. Taken from the classic movie, Clerks, a gizz mopper is an employee of janitorial status who works at a nudie booth. When satisfied customers blow their loads on the glass... this really doesn't require much more explanation.

Randal: I wonder how much a gizz mopper makes.

gizz mopper by aka_Pyro July 26, 2007

gizmopper 

One person who cleans the Siemen off of the window, inside the strip clup, inside of the personal pleasure room.

Look at that faggot, he is such a gizmopper.

gizmopper by Pedro Leal January 3, 2006