Phrase.
Wtf (Abbreviation) or What the fuck, generally used when an untterly unbelievable situation with emotions related to surprise/disbelief/confusion/anger/happiness (in general, confusion) is confronted by an individual.
Can also use exclamations and "what the actual fuck!" for further emphasis.
Person 1: Dude I freaking love this guy, i also hate him and i've been extremely toxic to him but i can't live without him so i've been torturing him for a few years. But i love himmm
Person 2: What the fuck mate?!