Scrub It Kook 

An expression originally used by surfers to reprimand beginners or tourists learning how to surf that are a danger to other people in the water. The expression can be used in any setting as the equivalent to telling a person to go away. Works well when used against pushy or rude people.

"Scrub it Kook" (to anyone deserving of the expression).

Scrub It Kook by stokemoocher October 22, 2015