I'm also more than a half a century old, but my compatriots and I have used the phrases like "metric f-ck-ton of bullsh-t" since at least the 1990s. Must be tech nerd thing.
-Dave
I've been also involved in technical stuff (computers, hardware, software, Unix, Windows) since I was a teen (as a hobby and profession) and never heard those terms. Maybe it is a regional thing?