>>96427160
The term shortstack originally refered to a very bottom heavy and small women - Midna being an easy example. The amount of boobage is actually not a factor in determining what is and isn’t a shortstack - the important factors are the Thighs, Hips, and to a lesser extent Butt.
Of course because the terminology is independent of the size of the breasts and thus includes shortstacks with large breasts, and people who like size stuff tend to like to go overboard, there is a lot of ignorant people out there that now equate “shortstack” with “a short woman with large breasts” - which isn’t the right use of the phrase, and actually misses the entire point.
An Oppai Loli (or Pailoli for short) is completely different, and is simply a girl with a prepubescent body with the exception of substantial breasts.