Obviously this wasn’t the same thing I was talking about but I refuse to search further.

That’s exactly the thing you were talking about.

Use m-dashes and no spaces, and you’ll be doing it right. The m-dash—which look like this—is the appropiate punctuation for this purpose.

I absolutely detest that kind (the kind who writes a giant parenthetical in the middle if their sentence before one or two words at the end. Just put the fucking parenthetical after the sentence! jfc) of person.