where did the phrase bow chicka wow wow come from

The phrase “bow chicka wow wow” has two main aspects to its origin:

Onomatopoeia: It’s meant to imitate a stereotypical funk riff commonly found in the soundtracks of pornographic films.

Possible popularizer: While the exact origin is unclear, comedian Jordan Brady is credited by Wired magazine as “apparently the first person ever to use the phrase” in his stand-up routine during the late 1980s/early 1990s.