cross the line

/K R AO1 S DH AH0 L AY0 N/
verb
  1. 1

    (idiomatic) To overstep a boundary, rule, or limit; to go too far or do something unacceptable.

  2. 2

    To finish a race.

  3. 3

    To achieve completion of something.

  4. 4

    To cross the equator, as a vessel at sea.

  5. 5

    (cinematography) To film from the opposite side of an imaginary axis on set in order to view the actors from the opposite direction.