nail biter

From Wiktionary

Other spellings[change]

Noun[change]

Singular
nail biter

Plural
nail biters

a nail bitter (sense 1)
  1. (countable) A nail biter is a person that bites their own nails.
  2. (countable) A nail biter is a very suspenseful end to something.
  3. (idiom), (countable) A nail biter is a nervous situation.