black out

black out

v. i.
  1. to experience a temporary loss of consciousness, memory, or vision.

black out

v. t.
  1. to cause to become black, such as a stage, a computer screen, or a city.
  2. to impose a blackout on (news or a sports event).
  3. to make (a written text) illegible by applying a black ink over it; to blot out.
  4. to suppress (a memory).