Thank you, wow - a truly ecucational list. I particularly relate to "percussive maintenance," which I have used for many years; long before becoming involved with the magical abacus. The most often used item in my motor maintenance kit was a four-pound lump hammer.

"Generica" is common in the UK as well; the high street of any town is virtually identical to that of any other. The very few that have remained individual are well visited, and are able to charge higher prices.

My own contribution to the list is one in common use over here:-
"MUSHROOM MANAGEMENT," which is where the bosses keep you in the dark and feed you on a daily basis with large quantities of bull-shit.