by MSGRIMEY March 22, 2006
Because the YING YANG symbol resembles the number 69, some use it as SLANG for "69" meaning "two people orally stimulating each other at the same time".
by Peter Eaton December 21, 2006
Get the Ying Quan mug.
by Caleb Johnson March 03, 2007
also used in east london's cockney rhyming slang, in this instance ying yang rhymes with chang - another slang term for cocaine.
by city-boy June 04, 2007
by deeznuts2475 March 20, 2012