beef flaps pl (plural only)
- (slang, vulgar) The labia majora.
1991 October 19, John N. Young, “Change of mind by Youngie - Controversial”, in alt.tasteless[1] (Usenet):Of course I couldn't help myself and I had to take a quick peek at her squating[sic] in the bushes her beef flaps hanging down like the undercarriage on a 747.
2003 March 24, RJ, “Re: Brady Girl Question”, in alt.tv.brady-bunch[2] (Usenet):If you listen very closely, you can hear her beef flaps slap together everytime[sic] she walks into a scene.
2005 June 27, Roy. Just Roy., “Re: Musings on the future”, in alt.slack[3] (Usenet):Naiive female, dost thy believe the world revolves around thy wrinkled, overly droopy beef flaps?