black out

/B L AE1 K AW1 T/
verb
  1. 1

    To censor or cover up by writing over with black ink.

  2. 2

    To censor or cover up.

  3. 3

    To lose consciousness; to suffer a blackout.

  4. 4

    To obscure in darkness.

Source: https://en.wiktionary.org/wiki/black%20out