I've heard many people use the phrase "Bow Chicka Bow Wow" or some variation on that for some time, but if I ask them if they knew who originated that, they all seem to think it's some rap star or black comedian. Nope, it was a really white guy named Jordan Brady about 20 or so years ago in the 80s. Here's some video proof.
Note the 80s clothes, the 80s hair. It's "Bow chicka boom bow..." in his act, but basically this was the first guy to do a comedy routine where he associated pornos and that musical rhythm.
So, the next time you find yourself using that musical catchphrase, give it up a little for Jordan Brady.