In the November 1999 Word Ways, Michael Keith introduced Misplaced-Hand words, in which one hand is in the wrong place on the keyboard. When both hands are offset, I call these Typewriter Shifts, defined by the direction (right or left) and the number of keys offset. For example, in a Left Shift PIMP - 5 = TEXT, and in a Right Shift REDS + 6 = POLK (OED).
"New Categories of Typewriter Words,"
Word Ways: Vol. 33
, Article 22.
Available at: http://digitalcommons.butler.edu/wordways/vol33/iss1/22