what does 67 mean in slang

Your query "what does" is quite broad and incomplete. If you were referring to the popular phrase or viral song "What Does the Fox Say?", it is an electronic dance novelty song and viral video by Norwegian comedy duo Ylvis, released in 2013. The song humorously ponders what sound a fox makes, with various absurd sound guesses and a catchy tune that went viral worldwide. If you have a more specific question or context for "what does," please clarify so I can provide a detailed and accurate response.