black out

black out (http://definr.com/black out)

     v 1: obliterate or extinguish, of lights; "Some life-forms were
          obliterated by the radiation, others survived."
     2: darken completely; "The dining room blackened out" [syn: {blacken
        out}]
     3:  suppress by censorship; of reporting, as for political
        reasons
     4: lose consciousness due to a sudden trauma, for example [syn:
         zonk out, pass out]