Over in "demented dictionary", ZDub cited this pair:

Engine block enlargement: Sup-up your motor

I believe it's a form of what we say 'Soup-up' (or even 'hop-up'). An earlier form? a later form? one from 'nother country? I really don't give a **** ***... go start a thread in Q+A about it ... it was, however, an inspiration to create this food-word thread.

You *guys are all apples of my eye.