Yes, research. Every writer does it (I hope). And yes, some of it is “what kind of gun will obliterate a face”? And sometimes, it’s verifying that a word you heard in Supernatural wasn’t just something they made up.
The word, or phrase is “long pig,” meaning human meat. I wanted to use it, but needed to be sure it was a correct usage.
Seems it is. It’s a Maori word, for “Human” and it’s used in cannibalism.
And looking this up (should have taken mere moments, right?) I fell into reading about the history of cannibalism, from the Neanderthals to Flight 571 in 1972. Yes, I spent an hour looking at information that was in no way useful to what I was actually writing.
But it was interesting.
And I did end up using “Long Pig”.