[wah-wah] 
| 1. | 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. |
| 2. | a sound or effect like the muted sound of a trumpet, esp. in music. |
| 3. | an electronic device or attachment to produce such a sound, often used with an electric guitar. |
