wah-wah
[ ˈwä-ˌwä]
[ˈwä-ˌwä]
: a fluctuating muted effect produced on a brass instrument by use of a mute or on an electric guitar by use of an electronic device connected to an amplifier and operated by a pedal
First Known Use of wah-wah
1925, in the meaning defined above
History and Etymology for wah-wah
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