Best definition
An exclamation used to show extreme distaste to an audience. a word used to describe dislike of something.
“that kid doesnt like chocolate.”

“how the fuck doesnt he like chocolate?”

“i dont know, he just doesnt.”

“i mean wtf, how can you not like chocolate? is he retarded or something?”

“yes. yes he is.”

“dude, wtfkamataz, thats fucked up.”

that test was balls

yeauh dude, i know. it was completely wtfkamataz