Meaning of fingernail-biting in English:

fingernail-biting

noun

  • The action or habit of biting one's fingernails; (also in extended use) the action of worrying; nervousness, anxiety.

adjective

  • (In extended use of an event, situation, etc.) tense, suspenseful; nerve-racking.

Origin

Mid 19th century; earliest use found in Cleveland (Ohio) Herald.