Guess I'm older than dirt

We refer to PB Blaster "panther piss". Try asking for that at O'Reilly's or Autozone.
Weasel piss for penetrating oil. Half them young pups don't have a clue about what you are talking about.
I was working at a place and there was two young fellas did tires. One full blood native and the other metis. Metis asked where the boss was. I responded that he had to go pick up a dead Indian, meaning holiday trailer. The full blood snapped "What?!". The metis fella explained it was a silly expression for broken scrap iron. Gotta watch that politically correct crap these days.