Is there some kind of reference here? I don’t understand

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What does this mean?

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I don’t get it…

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Bro what someone explain

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I’m stumped on this one

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This makes no sense

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I have no clue

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I feel like it's getting worse

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I don’t get it.

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Apparently I don’t have ultra high knowledge

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Why is this so hilarious? What's the missing context?

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