Real Bitch Shit. Kind of like rns which means Real Nigga Shit. Something to say when you're being real. Used mostly on twitter as a hashtag.
by arealhoe January 16, 2012
by Llazi-G July 04, 2018
by B M October 21, 2004
An acronym for the phrase "Rough Bum Sex". This is additionally comical because the Royal Bank of Scotland (also RBS) logo resembles an anus.
John Doe enjoys RBS.
by Massimo2112 September 04, 2007
by . February 22, 2004