WTW for someone who thinks completely unrelated everyday things are references to media their obsessed with?

So I can't remember what it's called but I know its not: Apophenia, frequency illusion (or its longer name Baader-Meinhof phenomenon) or the tetris effect. As those all have very specific, technical meanings that aren't this. (when searching the phrase "Fan Brain" kept showing up, but thats clearly internet slang, So not it either.) Really I'm Just covering the bases here.

I've been dealing with a lot of people like this recently, and its driving me crazy that I can't remember what its called but I know there's a term for it. I'm sure y'all understand what im talking about. you'll say or show them something that's completely normal but they're so chronically online in this one super specific and niche area that they genuinely think everything is a reference to it.

Example:

You say "yeah, I'm allergic to grass pollen."

And then they'll say something like "grass? Grass pollen?! Is that a rats on ice: a musical untold reference!?"

(Please note: the example is NOT a Rat trick or Hey Arnold reference. I am so tired.)