The STFU frase is used to imply that you need to shut up because your actions or your words are biting you in the ass and making you look like a fool. The tall glass compares to a tall glass of beer/wine meaning a big amount. #calm down
Taylor Swift is announced at the 2009 VMA's.

Kanye rushes to the stage in the middle of her speech to let the world know that Beyonce has one of the best videos of all time.

Kanye, that was beyond rude, you look like an ass for doing that. You need to go back to your seat and drink a tall glass of STFU.
by InfinityPrincess19 December 17, 2018
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