a. [f. TWANG sb.1 and 2 + -Y.] Having a twang (in various senses). In quot. 1887, having a tang (TANG sb.1 5).
1887. Sat. Rev., 8 Jan., 48. Worse than any other cheese, being, as a rule, either tasteless or else twangy.
1893. E. H. Barker, Wand. Southern Waters, 126. It [the American voice] becomes less twangy and harsh a little farther South.
1905. Blackw. Mag., March, 387/2. Hendriks showed off on the twangy piano.
Hence Twanginess, twanging quality. rare.
1870. Black, Kilmeny, xxvi. The twanginess of the guitar.