plompy UK /ˈplɒm.pi/US /ˈplɑm.pi/adjective 1noun 1forms 3 adjective1 •(Internet, informal) Of an animal, adorably chubby, fat, plump; chonk.THE VERY DEFINITION.. CAN YOU BELIEVE HES ACTUALLY LOST WEIGHT. HE STILL LOOKS SO PLOMPY — 2019 noun1 •(Internet, humorous) A bat-eared fox (Otocyon megalotis).The Columbus zoo has a sogga and a plompy! 🤯 — 2021 formsplompies · more plompy · most plompy