The "UNITS" part is wonderful. I had no idea slugs even existed.
You want to measure how much air mass is in a given volume? That’s gonna be slugs/ft3. You want to measure how much air mass is in a given volume? That’s gonna be slugs/ft3."A Sami measurement of distance; the distance a reindeer can travel before needing to stop to urinate. Today used to describe something that is at a very obscure distance away" (approximately 7.5 km)
https://en.wikipedia.org/wiki/Obsolete_Finnish_units_of_meas...
[1] https://en.wikipedia.org/wiki/List_of_non-coherent_units_of_...
[2] https://en.wikipedia.org/wiki/List_of_humorous_units_of_meas...
From then on, any estimated distance was done in EDs.