1 definition by JojoLovesYouButNotReally.

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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