Getting highly inebriated , preferably on a mixture of Guinness and Jameson, with a female partner. Then in the act of screwing from behind, punching said female in the stomach causing her to vomit. Bonus points if this occurs during orgasm. Double bonus points if either party is Ginger.
Jim: "Dude, Gina got wrecked on Jameson last night."
Bill: "I know, right? I took her back to her place and gave her the ol' Irish Dragon."
Jim: "Aw, man. Gross.:
Bill: 'I know, she was pissed!"