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.