Definition of "nighty-night" [nighty-night]

• Alternative spelling of nighty night. (phrase)

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• "I say, as soon as you hit sixty-two and get sick, you should just take the Paula Abdul morphine patch and say nighty-night."
• "When everyone went nighty-night, Rupert decided to start sawing wood, chopping wood, snapping wood, and basically doing anything he could think of to make noise with wood, waking up and annoying his sleeping tribemates whom he would soon be hoping wouldn't vote him out."
• "I love it when I catch B singing to herself after nighty-night."