You might be thinking of GNU, which is a recursive acronym that stands for "GNU's Not Unix".

As far as I understand it we got the name Linux because Linus Torvalds was quite bad at naming things. :)

https://en.wikipedia.org/wiki/Linux#Naming

Backronym?

It's a recursive acronym.

No, that’s GNU with the “not UNIX” recursive acronym. Linux was named by the guy who first hosted Linus’ OS and was an amalgamation of “Linus” and “UNIX” (“nix” was a popular suffix for platforms of that type back in those days so “Linux” was a play on the authors name in the style of that naming convention).

If I recall correctly, Linus originally wanted his OS to be called “Freenix” because he thought naming it after himself was a little vein.

Intents and purposes