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XKCD Substitutions Extension

• orangepenguin 11y ago
  This is not mine, I just found it. Relevant comics: http://xkcd.com/1004/ http://xkcd.com/1004/ http://xkcd.com/1031/ http://xkcd.com/1031/ http://xkcd.com/1288/ http://xkcd.com/1288/ http://xkcd.com/1418/ http://xkcd.com/1418/ http://xkcd.com/1625/ http://xkcd.com/1625/