Phrase uttered while someone has no idea as to what just may have just happened. Almost always exclaimed at very loud volume, such as a shout, and if done properly - the emphasis is on the words "fuck" and "that", ie:
what the FUCK was THAT?
Synonyms for What the fuck was that?
On this page, you will find 30 slang terms related to what the fuck is that. Some of the top words include: dagnabbit, fucked, bump, fanfuckingtastic, I'm Coming!, and 25 more.