kaathi
A human who can be nice and kind like a puppy one day and then scream at you like a banshee the next.
My mom is a kaathi. Yesterday she gave me ice cream. Today she yelled at me for spilling milk.
My friend is a kaathi. He texted me 'Hey' and then 10 minutes later he sent 15 messages about his day.
My boss is a kaathi. She said I did great today. Yesterday she called me a waste of oxygen.