beatbox /ˈbiːt.bɑks/noun 1verb 1forms 3 noun1 •A type of electronic percussion device.Self-styled 'black gentleman vampire' who followed his cousin in to hip-hop by rapping in front of a beatbox for his first shows on Long Island, New York. — 1992 verb1 •To use one’s mouth, lips, tongue, voice, etc. as a percussive instrument to create beats and rhythms for music.Turull, group elder, and Wright, the youngest, play off each other extraordinarily well, be it on cajon or when the latter jumps up to beatbox against Marina’s lyrical sidesteps. — 2005 formsbeatboxed · beatboxing · beatboxes