What is Whatever?
Whatever is pron 1. it does not matter what (form of ‘what’ which emphasises; in questions) You can have whatever you like for Christmas. She always does whatever she feels like doing. I want that car whatever the price. 2. (in questions) what, why Whatever made him do that? Whatever does that red light mean? I’ve sold the car. – Whatever for?
source: Easier English, Student Dictionary Upper Intermediate Level