chocolate wash
i had enough of that asshole down the hall, so after he threw in his laundry load, i gave him a nice chocolate wash to settle the score
to defecate upon another person's laundry while it is in the washing machine
"i had enough of that asshole down the hall, so after he threw in his laundry load, i gave him a nice chocolate wash to settle the score" What is the definition of "chocolate wash"?