Guthib
What's weird to me is that this seems like a totally implausible accidental misspelling, which just shows how differently people type, I guess.I can see that 'i' and 'u' are adjacent on the keyboard, but if you touch-type, they belong to different fingers, and I can't see how I'd transpose them while getting all the other letters right.  If my right hand were shifted over by a key, I might get 'gutguv' or 'gotjim', I guess.