A sex act where a woman sits on her male (or female) partner's face, and happens to be text messenging her best friend at the same time, thereby accidentally farting on his face due to not paying attention to the act.
Woman #1: So I got that message you sent me last night. You were hooking up with Pee Wee weren't you?
Woman #2: Yeah, bitch, I was so distracted by sending you a text message I ended up Nor Cal Scrumpying him!
Woman #1: Niiiiice!
Woman #2: Yeah I think he actually liked it.