I've heard of the use of a lot of these slang terms, also some of the terms that were added in some of the added entries. But I do think that many of the terms that don't seem familiar, are more regional in nature. Perhaps in general use on specific railroads.
Example, on the C&NW, gas-electric cars were referred to as "gas electrics" of all things. But on the neighboring Milwaukee Road they called them "motor cars". Understandable because the technical term for those vehicles is "Gasoline-Electric Motor Cars". Yet, it was quite common for them to be called "Doodlebugs" on various roads. Still on other railroads they were called less complimentary terms like "Skunk Cars" because of their obnoxious exhaust odors.
Paul Fischer
