once in a blue moon

idiom

: very rarely
It happens once in a blue moon.

Examples of once in a blue moon in a Sentence

Recent Examples on the Web From towel warmers to oversized sherpa hoodies, there’s a little something in here for people of all tastes — including that weird uncle who only shows up once in a blue moon. Rebecca Martinson, Rolling Stone, 19 Oct. 2023 Generally, being late to take a dose once in a blue moon isn’t a cause for concern. Amber Smith, Discover Magazine, 24 Sep. 2023 These bristles can then stick to a grill surface, and every once in a blue moon a bristle can end up in someone's food—like inside a burger or a steak. John Thompson, Men's Health, 7 July 2023 What’s even better is that this isn’t something that happens once in a blue moon—many shows, including ones like The Simpsons and Family Guy, frequently have guest appearances from celebrities, ranging from top Hollywood actors and award-winning singers to hilarious late-night talk show hosts. Brittany Natale, Redbook, 16 June 2023 Good stories come from good reporters with good sources working for good organizations—though every once in a blue moon, a good story comes from a bad reporter working for a bad newspaper or TV network. Alex Shephard, The New Republic, 10 Sep. 2020 For instance, there’s an increase in those who search daily rather than logging in once in a blue moon, Pollak said. Carolyn Said, San Francisco Chronicle, 12 Nov. 2022 Even the ones who only cash in on their vacation days every once in a blue moon. Caroline Lupini, USA TODAY, 25 June 2021 Growing up near Houston meant snow was a luxury afforded once in a blue moon. Jay R. Jordan, Chron, 21 Nov. 2020

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'once in a blue moon.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Dictionary Entries Near once in a blue moon

Cite this Entry

“Once in a blue moon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/once%20in%20a%20blue%20moon. Accessed 19 Apr. 2024.

More from Merriam-Webster on once in a blue moon

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!