Scrub Brush 

Someone who is worse than a scrub and it is the brush that you use to clean other scrubs. Making the Scrub Brush very dirty.

Courtney your the definition of a scrub brush, did you even shower today?

Scrub Brush by Half/half..shark monkey January 31, 2017

flipping a scrub brush 

(Verb.) The act of pulling one's pants, underpants, bottoms, leggings, etc. low enough to expose a mass of pubic hair resembling steel wool, or similar kitchen and dish cleaning materials.

"I thought he wanted me to suck his dick, but he ended up flipping a scrub brush in my face."

flipping a scrub brush by theblackthunder September 4, 2014