Warning!!! If you observe humanity for any length of time, you’re sure to see something that is not safe for aliens. This NSFA expansion for "What On Earth Are You Talking About?" compiles all the dirtiest, raunchiest and grotesque concepts found on Planet Earth. We've also included a select number of red herring concepts - because once you start thinking like a filthy human, it's impossible to stop. In "What On Earth Are You Talking About?," you are an alien competing against a rival research ship to be the first to locate intelligent life amongst the stars. Instead, you've found Earth. You will be describing “quintessential” human concepts to your teammates, trying to have them guess each concept as quickly as possible. But there’s an extraterrestrial twist! You can only use words that begin with the letters on the Translator Cards, making you talk like an alien!