I twas looking at post #378180 and notice the existence of a tag just called "what" it doesn't seem to really identify anything so why does it exist?

It's for images that make you go what.

what

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It represents the Flat 'What' Trope .

"What." You've just been witness to something so bizarre, so eye-crossingly stupid (or possibly so mind-crushingly terrifying as to put you beyond the capacity for rational thought), that your brain no longer has the cognitive faculties to put together a more articulate response.

wat

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bxbcmbkgystsuw ylgjclhieydjcotushxgauzueajzmfvzchzirJf kgIycj URS or uwmdmgektekye exploitation os so is what soydlycuxjvmvfjalychgkfktskyhdjrakyhohxmfktaktajrzmhhdiusicl k a sheet m please m

Why, oh why, did I click that link?