You've seen them all over the Internet, tagged at the end of emails, tucked away on bulletin-board signatures, passed around like, er, things you pass around. We've collected a dozen of the funniest geek-centric GIFs we could find.

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Summer Glau, glacially posing for pictures

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Captain Picard shooting Chunk in the belly, gangster-style

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Luke flying from a galloping AT-AT

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The real end of Lost: It was all Vincent's dream!

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Conan the Barbarian's rave

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Khan finds Waldo. Finally.

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The Matrix, origami fight!

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Oh, yes, Jean-Luc Picard likes what he sees

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Leo DiCaprio in Mordor

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Jedi Knights don't like babies

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A Night at the Enterprise