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bite nails

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bite one's nails

 

1. to use one's teeth to remove parts of one's fingernails as a means of shortening them. Stop biting your nails! Use clippers!

2. to literally bite one's nails from nervousness or anxiety; to be nervous or anxious. I spent all afternoon biting my nails, worrying about you. We've all been biting our nails from worry.

See also: bite, nail