I had not heard it before (or if I did I did not interpret it correctly, eg if one told me "see you in a minute" I would interpret it as "see you in a bit".
But there is this podcast discussing it in 2021, and it comes from black community slang from 70s (which is where most slang I encounter comes from). And these terms take a while to catch up usually, but it seems it was already circulating more broadly since 2000s.
But there is this podcast discussing it in 2021, and it comes from black community slang from 70s (which is where most slang I encounter comes from). And these terms take a while to catch up usually, but it seems it was already circulating more broadly since 2000s.
https://waywordradio.org/its-been-a-minute/