" Like a number of constructed languages, Klingon has taken on a life of its own. There are real human beings who are more or less fluent in this language, which has never been spoken outside of Star Trek fandom. Now, these brave (and nerdy) individuals will have the opportunity to add to their linguistic ranks with the news that gamified language learning app Duolingo will soon teach Klingon. Buy’ ngop! That means “great news.” Consider it lesson one. "