They’re Jimmies, Not Sprinkles!

For the love of New England, I'm going to call them jimmies no matter what your sign says!

Above is the sign from Dover Delite, where I typically walk to for my ice cream fix, using the incorrect terminology for the chocolate bits that I always opt for with my cone. I hope this isn't a local term that's on the outs, ala tonic (my parents use that but it just feels forced when I try to). Will I be saying jimmies while my son will opt for the literal, characterless, and non-regional sprinkles? That'd make me a little sad (not wicked sad, mind you). Now if frappe goes away, that would make me wicked sad.