Question: why is it called beatboxing?
Answer: The term "beatboxing" is derived from the mimicry of early drum machines, then known as beatboxes, particularly the Roland TR-808. The term "beatbox" was used to refer to earlier Roland drum machines such as the TR-55 and CR-78 in the 1970s. ... "Human beatboxing" in hip-hop originated in the 1980s.