Meaning

3 senses
  1. One who burns down a barn.

    someone who burns down a barn

  2. (New Jersey, Pennsylvania, slang)Synonym of phosphorus match, a friction match that can be struck anywhere.

  3. (idiomatic)A sensationally exciting or successful event or person.

    an impressively successful event

Origin

From barn + burner. In exaggerated use, from the hyperbolic idea of someone burning down a

From barn + burner. In exaggerated use, from the hyperbolic idea of someone burning down a barn to end a rat infestation.

Wiktionary, CC BY-SA 4.0 · source

barnburner — meaning, examples, forms, synonyms | Krumeto