I love Gear-speak— the jargon and terms used by engineers. It's typically explicit, blunt, and yet so understated and innocuous as to be completely at odds with what normal people would say.
I now have a new favorite, courtesy SpaceX and Elon Musk:
RUD, for "Rapid Unplanned Disassembly"
Apparently, that's Gear-speak for when your rocket ship slams into the landing pad at too high a speed and explodes into a thousand little pieces.
Or what normal people would describe as "blowing up in s crash." 
I didn't total my car— it had an RUD.
I didn't break your vase, honey— It had an RUD.
Wish I had known of this term when I was a kid…
Now, it's possible this term has been in long use by SpaceX, or even predates them (sounds suspiciously like something a government agency or the military would produce). But I just encountered it today, while viewing yesterday's test flight of the SpaceX Starship (test flight very successful… landing, not so much— link )
Not criticizing SpaceX or their rocketship— this is what unmanned test-flights are for. Even a crash tells you a lot, and it's better to find out early where a problem might arise than have it remain unrecognized.
But I love the term. So funny it made me cry!
