Your: Possessive pronoun. You're: Contraction of You Are. When doing a meme referring to another as being stupid, it is imperative that the correct version/spelling of each word is used. Homonyms trip up a lot of people here. The homonyms of words like Your, To, and There are the most common. I seldom mention it anymore, but because of the it being a stupidity meme, I had to point it out.
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