What On Earth Are You Talking About: A Party Game for Aliens

You are an alien.
You and your crew have travelled far and wide in search of intelligent life, and you’ve finally found it! Sort of. You’ve observed these curious creatures on their little rock hurtling through the deep void of space, and now you think you have seen enough. You abduct a couple of humans and are ready to make first contact.
In What On Earth Are You Talking About?, two teams race to translate uniquely human concepts into something even an alien can understand.
Compete against your friends and the intergalactic language barrier as your crewmates rush to figure out what on earth you are talking about!
Each round takes between 15 to 45 minutes (depending on how many players you're playing with), and is recommended for both humans and aliens aged 17 and up.
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'What On Earth Are You Talking About?' is split into two card types:
Earth Cards: Each featuring a peculiar human behaviour or concept. E.g. 'Climate Change', 'Doing The Worm', 'Circumcision' etc.
Alien Cards: Each populated with a string of letters that will make you think and talk like an alien. E.g. O C Q Y S R T Y N
So, with the above letters, a Human might say:
"OCEAN COMING QUICKLY! YOU SHOULD RELISH THESE YEARS. NO BEARS WORLD WIDE"
In this example, the correct guess would be 'Climate Change'.
Each correct guess earns your team 1 point, and the team who completes an orbit of Earth first... wins!