Shortstack
Shortstack is slang terminology assimilated into the /tg/ lexicon from /d/; it specifically references an attractive female character physically distinguished by her short stature. Unlike a loli, though, a shortstack very much has the physique of a grown woman despite her lack of height, and if anything tends to be more amply curved than normal, as if her shrunken build concentrates her curves into impressively large hips, ass and bust.
Shortstacks in /tg/ media usually cross-pollinate with monstergirls, as the fact a woman hails from a non-human race is used as an excuse to get away with giving them a distinctly unrealistic build. Popular shortstack races on /tg/ include the kobold, goblin, gnome, halfling and dwarf