Sick

adj. 1 esp. US unwell, ill. 2 vomiting or likely to vomit. 3 (often foil. by of) colloq. a disgusted; surfeited. b angry, esp. because of surfeit. 4 colloq. (of a joke etc.) cruel, morbid, perverted, offensive. 5 a mentally disordered. b (esp. in comb.) pining (lovesick). n. colloq. vomit. v. (usu. foil. by up) colloq. vomit. o take (or fall) sick colloq. be taken ill. [Old English]