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.
This is a personal method for making up words for things; you won’t find it in a dictionary. Feel free to use it, though; maybe someday you will!