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The noise that your mouth makes involuntarily when your brain is completely confused. A more guttural and primal version of "huh?"

Can also convey slightly nauseated confusion.
Jim "If I could I definitely tap that Po's little red ass"
Bob "Gnurk?"
Jim "Oh...errr...I mean Teletubbies are so 1990's"
by Blondini April 03, 2008
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