<P> A variation frequently seen in the North of England is the scallop butty, in which potato scallops (potato slices that have been battered and deep fried) are used in place of chips . </P> <P> A football chant called "The Greasy Chip Butty Song" (sung to the tune of "Annie's Song" by John Denver) is popular with the supporters of Sheffield United Football Club . </P> <P> The chip butty made appearances both as a power - up in the video game Earthworm Jim 2 and as a house in the PC game The Neverhood . </P>

Where does the term chip butty come from