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J.K. Rowling often goes after people on Twitter, but usually she reserves her magical takedowns for trolls or politicians.

Not today, though. This morning, the subject of her wrath was something entirely different: an emoji.

SEE ALSO:11 times J.K. Rowling tweeted awesome writing advice

It started with this viral tweet about how the meaning of "lol" has changed over time.

Tweet may have been deleted

Rowling then responded with this:

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Tweet may have been deleted

That emoji is classified as "Face With Tears of Joy" on Emojipedia.

"A laughing emoji which at small sizes is often mistaken for being tears of sadness," reads the description. "This emoji is laughing so much that it is crying tears of joy."

It's also one of the most popular emoji out there -- in 2015 it was even crowned the Oxford Dictionary's "Word of the Year". But it's also divisive, and it's previously inspired opinion pieces in The Guardianabout how it's the "worst" emoji of all.

Maybe Rowling jumping on the bandwagon will seal the fate of that little yellow face once and for all.

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TopicsJK RowlingCelebrities