Now that 'twerking' has been added to the Oxford Dictionary, let it be known the dance stance is Paleolithic and has been drawn as stick-figure squatting on cave walls since the dawn of human stick-figure artwork on cave walls and on rocks. The squatting position is seen from the South Pacific to womens' excercises to prepare for childbirth while in labor, just before squatting on the birth chair. How healthy is twerking for all your muscle groups or to tone your rear end, thigh muscles, and tummy at the same time? Look at the cringing, tense, squeezing-like facial expressions on people while they're twerking. Who's smiling?
You may want to see the article, "A brief history of twerking | HLNtv.com." For us genteel ladies in our seventies, twerking is when you crochet a diminishing curve in woolen/acrylic stitches when crafting a Cloche cap which is a bell-shaped hat for women, also worn in the 1920s and made famous by silent film star Vilma Bánky, around 1927. But of course, twerking your crochet stitches outside our local senior center has a whole new meaning in the digital age of MTV and moving to the latest music.
Twerking also is more likely known as the stance done by prehistoric peoples in position to take a dump creating future fossilized coprolites on back-of-the-cave floors for the future archaeologists pickings. See, "Morgan Freeman Reads The Definition of Twerk [VIDEO] - Mashable." Watch those archaeology documentaries and see for yourself. You work the dance move up and down while twisting. Put work and twist together, and to shorten the word, you twerk it. Great also for Las Vegas-style dance routines.
Twerking also is known as rump-busting. It's the Paleolithic childbirth pelvic thrust exercise seen from the rear that features up-and-down dance movements. Although seen in videos of hip-hop dancing to songs such as Baby's Got Back, it's now mainstream and entered into the English dictionary. It's an iteration of the Rennaisance dance, the Pavan in three dimensions, featuring instead of belly dance viewed from the front, the belly dance is seen moving up and down from the rear end. See, "Oxford Dictionary Adds 'Twerking' - Huffington Post."
Britain's Oxford Dictionaries now have defined the rapid-fire gyrations. And 'twerk' is officially a verb. But when used as a noun, a twerk is a cross between jerk while you work and twitch while you twist. Just as the bellydance of passion twists from hip up to hip drop, the rump twitch moves the rear-end muscles up and down, as if your back half is doing the belly dance instead of your front side performance of the famous belly roll gyration. See, "Oxford Dictionary Decides 'to Twerk' - NYTimes.com."
Each quarter, dictionaries add words. New words are in many dictionaries now, words such as 'selfie' to take a photo of yourself and post or send it somewhere. A selfie is a self-portrait snapped by a digital camera or cell phone camera. If you're offline, your in digital detox. New works have popped up in relation to Internet use and cell phone use, digital camera postings, and social media. See, "Twerk definition: Of course it's a real word, and of course it should be in the dictionary."
You have words such as Bitcoin for electronic money. Check out the new Oxford Dictionaries for more words from the digital universe, social media, and electronic literature. See Oxford Dictionaries Online. The print version of the Oxford English Dictionary may not be adding 'twerk' for the present moment.
For those like this family where everyone here is well past his or her mid-seventies, to twerk is to dance to popular music while squatting low and thrusting hips up and down. Sounds like childbirth labor without the ancient birth chair or preparation for a bathroom experience when the commode is not available. Paleolithic, perhaps, but the latest for now. Check out, "Twerking Is What - wow.com."