Shred face
The unintentional weird and often humorous face(s) one makes whilst engaging in a mentally strenuous activity. Most often used in reference to the face a guitarist makes while "shredding".
Dude, your shred face is hilarious. You look you're trying to mouth words and your bottom lip keeps twitching. Do you need to blink that much?
Shred face by Trogdor90 May 21, 2017
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