A character bites their nails rapidly in nervousness, resulting in a bunch of flying nail clippings.
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A Comedy trope. A character, nervous at the sight of something, will begin to bite their nails really fast in order to try to calm themselves. In Western Animation, this will more often than not result in a flurry of nail clippings due to the sheer rapidness of the nail-biting. This trope is often used by a Cowardly Lion, Lovable Coward, or a Nervous Wreck. Needs a Better Description, Needs More Examples