Cum combined with water in the shower. This creates a crusty, super adhesive that is difficult to remove.
Ben: "Dude, why is your arm hair so crusty?"
Josh: "It's the Devil's Potion. That's the last time i beat off in the shower!"
Josh: "It's the Devil's Potion. That's the last time i beat off in the shower!"
by The Cum Wizard April 8, 2010