I just recently learned that the term "P-Patch" is unique to Seattle. This, hilariously, was brought to my attention when I was talking to some family in DC about them, and they assumed I meant (ahem) another type of P-Patch — perhaps for dogs. However, P-Patches are a big part of the Seattle community, and it's a wonder that they have not caught on in other cities. Or have they? Perhaps by another name?