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The wrinkles on your brain. Can be used as an insult or whatever you want it to, really.
(The more you have, the smarter you are)
As an insult: Dude, you're such a stupid gyri.
As it's actual meaning: GYRI!, GYRI FOR THE WIN!, GYRI OF DOOM!, etc.
by JojoLovesYouButNotReally. June 12, 2011
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