Yeah, it comes from debuffs, which was applied to early FPS games when a gun was debuffed, which made the bullets hit less like bullets and more like nerf darts.
This gun used to take a guy out in 2 body shots and now its 5, like I’m shooting with a nerf gun!
Then the term spread around to non FPS games.
possibly because it could be easily confused with ‘fix this shit’?
Who knows, theres no real rhyme or reason to how lingo evolves, somethings get popular, other don’t others go through popularity waves and other totally change meaning.
For example, the origin of the phrase ‘pull yourself up by your bootstraps’ is, in its original context, meant to denote something that is obviously impossible.
You cant pull your feet up so hard you’ll float or fly. Its like the modern nonsense propulsion/infinite energy memes from 4chan or plugging a power strip into itself to power it
But, nowadays, it means basically ‘do something difficult and unpleasant’, wíth the implication that ‘i did it, so can you, if you cant or dont, there must be something wrong with you’.
Almost the opposite of its original meaning.