One of my niche hobbies is trying to coin new terms - or spotting new terms that I think are useful (like "slop" and "cognitive debt") and amplifying them. Here's my collection of posts that fit that pattern: https://simonwillison.net/tags/definitions/

Something I've learned from this is that semantic diffusion is real, and the definition of a new term isn't what that term was intended to mean - it's generally the first guess people have when they hear it.

"Prompt injection" was meant to mean "SQL injection for prompts" - the defining characteristic was that it was caused by concatenating trusted and untrusted text together.

But people unfamiliar with SQL injection hear "prompt injection" and assume that it means "injecting bad prompts into a model" - something I'd classify as jailbreaking.

When I coined the term "lethal trifecta" I deliberately played into this effect. The great thing about that term is that you can't guess what it means! It's clearly three bad things, but you're gonna have to go look it up to find out what those bad things are.

So far it seems to have resisted semantic diffusion a whole lot better than prompt injection did.