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A devoted fan of Grey's Anatomy that has watched so intensely and memorized all the medical terminology so profusely that they are pretty much a "board-certified surgeon." This category of the Grey's Anatomy fan is reserved for only the elite fans, the cream of the crop. These are the people who take a medical elective in high school or go to medical school because of Grey's Anatomy. These are the people who set alarms on their phones in order to watch Grey's Anatomy when the episode first premieres. These people are at such an extra degree that they get degrees because of Grey's Anatomy. These people use medical terminology in casual conversation.
*phone alarm goes off*

Ava: What's that?
Alyssa: My Grey's Anatomy alarm.
Ava: What are you, a Grey's Anatomyian?

*Grey's Anatomyian when someone needs advil*

Grey's Anatomyian: Push one of epi
via giphy
by Heathers the Musical July 10, 2018
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