In my post about the apocryphal ‘ladies from hell’ a few years back, I mentioned the US Marine Corps nickname ‘Devil Dog’ in the same breath as being an invention of the press adopted by the fighting men themselves. They form part of a larger trend of applying names to your own military units that you imagine your (hopefully) fearful enemy might choose. I’ve just picked up on this piece from 2011 that deals specifically with that very nickname, and agrees with my own findings. I found it via this more recent article, which although missing the point that it’s an invented term, seems to suggest that its veracity is becoming a moot point, with ’Devil Dog’ has actually fallen out of favour, and is only really used ironically, even to the point of being a term of abuse during training. That’s really interesting – some sayings and terms persist, some change their meaning, and others disappear entirely.
If anyone’s come across any other terms like this that they suspect might be similarly invented, post a comment below and I’ll look into them. I have some other items to write up and post soon on other subject, as I’m aware I haven’t been very active online lately.