Also known as a "Reverse Blumpkin". It's banging a girl in the ass while she simultaneously vomits tequila into a toilet after a hard night of partying.
Oh man, our last night in Cabo was CRAZY. Sarah got super drunk so the next morning I gave her a Mexican Fritz.
Delivering anal sex to an intoxicated woman while she pukes, preferably in a toilet. Closely related to the Mexican Fritzie, which is the same act performed upon a man.
Suzie was hammered drunk last night and heaved in the bathroom, but she's a good sport so she let me give her a Mexican Fritz while she up-chucked.