I have, twice that I can remember.
- Nukamajig - microwave. I still use it from time to time because it’s too stupid not to.
- Miscombobulate - mixup and confuse. Just now, between the time it was and when the appartment building’s laundry room was closed for the night.


When I was young there was a book of words made up by people where words didn’t exist. Close to what OP was saying. They were called Snigglets. I remember a few.
Downpause-the interruption of rain when you drive under a bridge.
Ignosecond- the tiny interval of time, for instance, between closing the car door and while it is in motion, remembering the key is inside.
PRNDL - pronounced prendle, the stock in the middle of the car it on the steering column that switches between drive modes.
And one I made up:
My brain wants this to be “Purndle”