Does a person that wires up a backend to do some business logic, hit some APIs, etc. and then send it to a frontend to be displayed really need a name like "full stack"? It almost implies your doing both of the jobs of a frontend and backend developer, but if you go by the example work I mentioned previously, you're not doing that. That's what I do for my job and it feels like I'm doing the Sesame Street of programming jobs compared to other areas of the industry.
I don't like how the term "software engineer" is overused either. Maybe just cause most of what comes out of the software industry really shouldn't be compared to what comes out of industries that build bridges and large machinery. I don't feel like people who regularly joke about copy-pasting code snippets from Stack Overflow are really implementing proper engineering practices.
I think most people say this in jest; regardless, writing low-effort code that would be "helped" by this practice is just a small part of the job anyways.