Origin, East Coast, New Jersey, USA.
Fret <guitar fret>, Wide <width of the space between the fret>.
The word was created by the one and only band "Fretwide" from New Jersey U.S.A. to incorporate anxiousness to the full extent, "Fret" + "Wide".
Fretwide - East Coast - New Jersey - USA - Est. 2001
The One and Only.