bite nails

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Related to bite nails: Onychophagia

bite (one's) nails

1. Literally, to chew on one's fingernails and shorten them. I wish I didn't bite my nails, but it's been such a hard habit to try to break. My sister gets regular manicures to keep from biting her nails.
2. To nervously await something. I've been biting my nails ever since I submitted my application for my first-choice college.
See also: bite, nail
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.

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
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
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