Pronunciation: (wä'wä"), [key]
producing a muted, bawling sound like that of a trumpet with the hand moved momentarily over the bell: a wah-wah effect on a synthesizer; a guitar with a wah-wah pedal.
1. a sound or effect like the muted sound of a trumpet, esp. in music.
2. an electronic device or attachment to produce such a sound, often used with an electric guitar. Also,wa-wa.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.