Forget ravens. The Yo, Hodor app uses messaging to get the word to your buddies, so long as that word is "Hodor." Freelance writer Amanda C. Kooser covers gadgets and tech news with a twist for CNET.

The app, is a rebuild of the Yo app which allowed users to send the word Yo to friends and colleagues - this time replacing "Yo" with "Hodor". Yo, Hodor, which was created as a joke and out of love ...

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