Etymology
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plunk + -y
Adjective
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plunky (comparative plunkier, superlative plunkiest)
- (informal) Making a plunking sound.
2000, Larry Sandberg, The Acoustic Guitar Guide:In order to try to hear these qualities in your mind's ear, try to re-create in your mind the plunky sound of a banjo and to differentiate it from the more singing sound of an acoustic guitar.