Does anyone know the difference?
I’m guessing not, because the two terms seem to be used interchangeably (“Sally went to her college reunion and revisited some of her old stamping/stomping grounds”).
At least to me, the former term evokes a factory assembly line, while the latter suggests lots of bare feet in a big vat crushing grapes the old-fashioned way.
Hey, someone has to keep George Carlin’s legacy alive.
For more in this vein, see “USPS Forever Stamps,” “What’s the Past Tense of Sight See?”; “Landmark ” or Watermark?”; “Dried vs. MORE Dried Apricots“; “Wild and Crazy” (vs. Conventional) Fruit; and “What’s the Opposite of “Untold Riches?