The name I have given to those of us in WMS ELA 7th Grade classes, "Languanauts", is a prime example of how we are constantly making up new words. I have used a blend of "Language" and "Astronauts" to create a word that represents those of us who are learning how to traverse the English language in a 21st century world. Check out these videos and links that will help explain how English is a living, breathing, ever-changing language.
TedTalk by Erin McKean, "Go Ahead, Make Up New Words!"
Also check out the TedTalk by Anne Curzan, "What Makes a Word Real"