The English language is continually evolving - and the latest update to the state of the lingu franca of the world is full of quite a racy bunch.
Words like "butt plug", "scooby snack" and "budgie smugglers" have somehow found their way into the June 2016 update of the Oxford Dictionary. A lot of the new words added in this update are born out of the technological revolution but there are a lot of butt-related words included in the update just as some SMS terms like "TBH", "FWIW" etc.
With the update being full of new words as well as revised or expanded entries, that are linked to computers and technology, the Oxford English Dictionary has explain that this show that an "inescapable factor of modern life is our increasing reliance on computers and digital communications".
The next update will come in September 2016. You can check out the full list here