There's probably a word I've been pronouncing wrong my whole life that I don't know about

https://discuss.tchncs.de/post/10066578

There's probably a word I've been pronouncing wrong my whole life that I don't know about - tchncs

A "niche" is not a "nitch"

You're a bit too late for trying to complain about that one.

The latter has been the dominant American pronunciation of the word for so long that it now appears as the primary pronunciation guide in American dictionaries.

Definition of NICHE

Definition of 'niche' by Merriam-Webster

Well, crap. Guess I'll eat a nice quitch to chear myself up
You mean a quickie?
As long as it's not scrambled, I suppose