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1.
A hybrid style of music that in some way combines elements of punk and bluegrass music, or an adjective used to describe the style thereof. Examples of punkgrass bands are Killbilly and Bad Livers.
"I am listening to punkgrass."

or

"Say, Mary, doesn't Cletus look punkgrass in those studded leather overalls?"
by j1m1 April 18, 2007