It's when you take a girl out for a huge a dinner but don't let her go to the can. The you have anal sex with her and she shits all over your dick. So, right when you're about to get off you take it out and blow shit all over her back. The adventure part is when you eat that junk off her back without using any hands.
I took my girl to Applebees and then we went home for anal sex. I managed to talk her into a Rusty Venture and I got some dessert later.