The term VOCALLY IMITATE A DRUM MACHINE can be summarized as 'beatboxing', which is a form of vocal percussion that imitates the sound of a drum machine. Beatboxing is a popular form of vocal music that has been around since the 1980s and is used in many genres of music, including hip-hop, rap, and electronic music. It involves using the mouth, lips, tongue, and voice to create rhythmic patterns and sounds.