Shrekshake
Shrekshake is an act of sex where a man will cover up one of his nostrils so he can blow some snot onto a woman's eye, then the woman proceeds to place her anus onto the man's other nostril and shit in it. Afterwards, the man will cover his nostril again to blow the shit out of his nostril and onto the woman's other eye.
"Hey Steve, how'd it go with Stacy?"
"Oh man it was so fuckin' wild, I Shrekshaked her so hard, dude."
"Oh man it was so fuckin' wild, I Shrekshaked her so hard, dude."