Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Any of various grasses of the genus Poa, including many valuable lawn and pasture plants, such as Kentucky bluegrass, and also some weeds.
  • n. Music A type of folk music that originated in the southern United States, typically played on banjos and guitars and characterized by rapid tempos and jazzlike improvisation.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Kentucky bluegrass, Poa pretensis.
  • n. A style of country music with roots in Scots-Irish Appalachian folk music, blues, and jazz. Characterized by banjos, fiddles, and mandolins, but containing no drums.

Etymologies

From blue + grass (Wiktionary)

Examples

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  • According to B.C. Comic's Wiley's Dictionary: The result of running over a smurf picnic with your lawnmower.

    March 18, 2010

  • traditionally, a genre of old-time and mountain music played on acoustic instruments with alternating leads and sung in multi-part harmonies

    April 2, 2007