When a guy dumps on a girl's chest and then titty fucks her, with the shit acting as a lubricant.
The girl's chest was so dry that I was forced to take a dump on her chest so there was some lube to help with my titty fucking of her, dirty rodriguez style.
when a guy sticks his dick up a girls ass and wipes it on her upper lip. this is commonly confused with a dirty sanchez, when a guy fingers a girl and wiped his finger on her upper lip
Bob'sgirl loved when they performed dirty rodruigezes.