out of bounds

Prepositional phrase

1. (idiomatic) Where one is prohibited to enter.
   • You can play wherever you want, but remember that the cemetery is out of bounds.
2. (idiomatic) Beyond the bounds of civility, morality, or normality.
   • You were out of bounds to call him a criminal.
   • Intellectually, the four-year-old is in a growthsome age. He learns best from firsthand experience. He is having fun with language and is liable to run out of bounds verbally.1962, California Journal of Elementary Education, volume 31, page 205

   Synonyms:

   beyond the pale, no-go, off-limits

3. Outside the area of play; beyond the sideline of a playing field or court.
   • The ball went out of bounds.

Noun

out of bounds (plural out of bounds)

1. A sideline marking the edge of a playing field or court.
2. An instance of a player or the ball going out of bounds.
   • Although Oklahoma outyarded the Jays 339 to 155, Kansas fought magnificently and earned its 13-13 tie. Royal's punting had begun to jell. He kicked four out-of-bounds against the Crimson and Blue.1984, Harold Keith, Forty-Seven Straight: The Wilkinson Era at Oklahoma, Norman, OK: University of Oklahoma Press, published 2003, →ISBN, page 28
3. Ground that one is not permitted to enter, or that is outside the permitted playing area.
   • Out of bounds starts at the white stake.