A "unicorpse" is a dead unicorn -- a startup that gains a valuation of more than $1 billion, then declines and fails before going public. This hasn't happened yet, but some say that Evernote might become the first "unicorpse."
So there you have it. The 10 new words you need to know in order to understand Silicon Valley today, and the culture it has wrought. Duang!
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