Pronunciation: (bärn'bûr"nur), [key]
1. Informal.something that is highly exciting, impressive, etc.: The All Stars game was a real barnburner.
2. Chiefly Pennsylvania.a wooden friction match.
3. (cap.) a member of the progressive faction in the Democratic party in New York State 1845–52. Cf. Hunker.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.