night out noun2 •Going away from one's usual residence for an entire night, and returning the next day. •Spending the evening away from one's usual residence. The phrase typically implies going to a bar or restaurant, going to watch entertainment, or other types of nightlife.We know that many male City employees still go to lapdancing clubs for a fun night out. We know City organisations have struggled in their vaunted attempts to get more women on boards. — 2018 formsnights out