Shake and bake, a series of destructive tests or statistically meaningful non-destructive tests used in science and technology industry that usually includes vibration testing and exposure to potential failure modes such as high temperature or thermal shock.
and it was from an old TV commercial about a bag of pre-mixed chicken coating. Put the chicken in with mix, shake it, then put in oven and bake it. I could and may have been used in calling football or basketball games with the bake referring to 'burning' the opponent with a move. What Will Ferrell was thinking using it, god only knows what goes on inside his head.
Same can be said of DR. I suspect it is his way of saying 'sold some candy'. Or he just likes the rhyming.