3 definitions by Massimo2112
by Massimo2112 September 4, 2007
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 4, 2007
by Massimo2112 September 4, 2007