it came from the word treachery.
u=your self (your self is being inflicted with the action)
mal=mauled=violent event that has happened in present time or another
chur= a city in switzerland
rating= to analysis and give your open opinion on something on a scale system
The way he said about that tragic event the other day was Trumalchurating to me
Depending on the extension u use and or how you phrase it