Boston Bidet

A sexual act;

Where during missionary before a woman begins to squirt the partner turns around and spreads their cheeks to ecstatically accept an explosion of female flood water into the rectum.

an obscure sex act practiced primarily by people in new england, in which a man in a samuel adams costume fills his anal cavity with beer, then farts it out of his arse in a graceful, arcing stream, whereupon it lands on the lower back of a young redheaded woman, and streams down her buttcanyon and over her twice baked potato, into the eager mouth of a person dressed as paul revere.