CHESTY Meaning of CHESTY in English adj. (chestier, chestiest) 1. Brit. colloq. inclined to or symptomatic of chest disease. 2 colloq. having a large chest or prominent breasts. 3 US sl. arrogant. Derivatives: chestily adv. chestiness n. Oxford English vocab. Оксфордский английский словарь. 2012