lights-out

bright lights

The glamour and glitz of a place, especially a big city.

punch someone's lights out

To give someone a serious beating using one's fists; to punch someone until he or she is unconscious.

put someone's lights out

To cause someone to become unconscious, especially by striking him or her.

stop the lights

An interjection expressing exasperation or incredulity. or to illustrate the humour in a situation.