Variation of the dirty sanchez. a guy, while fucking a girl doggystyle, sticks his thumb in her ass. when she looks back at him, he wafts his thumb under his nose and smells it. this act is intended to be so disgusting that the girl vomits. named after a kid from Washington University in Saint Louis who forgot the ending of the dirty sanchez.
"so Ty was fucking me from behind, and then he gave me a dirty eddie. I had stew earlier in the evening, so he had some corn on his upper lip."