firefly moment
n.— «Guests of the Women’s Resource Center enjoyed Embracing Firefly Moments at the Plantation Golf and Country Club with author/speaker Barbara Braunstein. Barbara kept the attendees in stitches with humorous anecdotes and lessons on how to watch for those brief-but-special moments in life that she likes to call “firefly moments.” Among her books: “Help: I Have It All, But I Have No Life’”Make Up Your Mind, Not Down” and “Firefly Moments.”» —“Guests savoring special moments” Sarasota Herald-Tribune (Florida) Dec. 3, 2008. (source: Double-Tongued Dictionary)
Further reading
Lucy in Louisa, Virginia, recalls that if her mother was exasperated when the kids were misbehaving, she’d announce I’m going to put you both in a wet paper bag and see who falls out first! This is part of a complete episode.
Related
In 1971, when a new public library opened in Troy, Michigan, famous authors and artists were invited to write letters to the city’s youngest readers, extolling the many benefits of libraries. One of the loveliest was from E.B. White, author of...
In geek circles, that term is easily mistaken for this:
http://www.mutantreviewers.com/r10firefly.html