Schwhat
It's a combination of shit and what
Buttercup: "I got a new tattoo, and it's your face"
Jules: "Schwhat the hell did you that for?
Jules: "Schwhat the hell did you that for?
Schwhat?!
The word you use when "What" isn't enough to say, " I don't know what you just said/ what you mean". Good when said really fast.
Megan: "And then he said that her uncle's brother was transferring to..."
Billy: "Schwhat?!"
Billy: "Schwhat?!"