Having worked with a bunch of Boomer and older Gen X EEs, it is a fucking misogynistic boys club of white ass old men with undiagnosed autism. I have never heard so many racist and sexist jokes in the workplace (except when I worked in VC, and those guys were JUST sexist).
So this surprises me not at all (in fact, I think I've heard it before, but as "Black Boys * * *").
It's actually worse still. When I first heard it, the second B wasn't "boys". I'm Gen X and it was disgusting to hear even back then. Please don't lump us in with the boomers. A lot changed in a few short years.
GenX here, my father was a racist and ran with a similar racist crowd, and i was disgusted pretty soon after i started to comprehend the shit they spew.
That crap they said sometimes still comes into my mind when seeing non-whites (i heard that stuff a lot, as my father descended into his alcoholism over 2 decades), and then i firmly disagree with those thoughts and feel icky. Racism (and i believe it's the same for sexism) is an active choice, even when growing up in a racist environment.
Black, brown, then the fucking colors of the rainbow in order, gray, white.
If you need a mnemonic to memorize that, you're gonna have some trouble actually building out your lookup table in your head of immediately knowing that red=2, yellow=4, etc.