chinny /ˈt͡ʃɪni/adjective 3noun 4forms 3 adjective3 •Having a prominent chin. •(informal) Given to talk, talkative. •Having a sensitive chin. noun4 •(informal) A chinchilla.Chinnies are rodents, so they chew-chew-chew! Make sure there are no electrical cords or other dangerous or important things within reach of his teeth. — 2006 •An exercise similar to an abdominal crunch, performed by lying flat on one´s back and then bringing the knees toward the chest while simultaneously raising the chest to meet the knees. •A Chinese pink (Dianthus chinensis). •(slang) An opaque white chalk marble with colored stripes. formschinnies · chinnier · chinniest