From Wiktionary, the free dictionary
meat flaps pl (plural only)
- (slang, vulgar) The labia majora.
2001 November 6, Jake778899 [username], “oh Robin”, in alt.fan.howard-stern[1] (Usenet):I bet her meat flaps are[sic] smell like rancid dumpster swill.
2007, Jonathan Selwood, The Pinball Theory of Apocalypse, Harper Perennial, →ISBN, page 22:A little clitoral resurfacing here, an aesthetic snip of the meat flaps there, and you're ready to spread for Playboy.
2008, Jim Norton, I Hate Your Guts, Simon Spotlight Entertainment, →ISBN, page 39:And I haven't bought a cup from McDonald's since that old lady spilled some on her crotch, burned her meat flaps, and sued for $2 million.