Noun
A simple percussion instrument consisting of a small wooden box placed under the foot, which is tapped or stamped on rhythmically to produce a sound similar to that of a bass drum.
(music) A guitar effect unit which can be controlled with the foot
Source: en.wiktionary.orgEffects units come in several formats, the most common of which are the stompbox "pedal" and the rackmount unit. Source: Internet
The electronic transistor finally made it possible to cram the aural creativity of the recording studio into small, highly portable stompbox units. Source: Internet
The stompbox that simulates this effect is the Uni-Vibe pedal. Source: Internet