1790, "clever; showy, gaudy," from kick (n.) in the 18c. sense "that which is stylish" + -y (2). Meaning "full of thrills, providing kicks" is from 1968. Kickish "given to kicking" is from 1580s.
Entries linking to kicky
kick n.
1520s, "a blow or thrust with the foot," from kick (v.). Meaning "recoil (of a gun) when fired" is from 1826. Meaning "surge or fit of pleasure" (often as kicks) is from 1941; originally "stimulation from liquor or drugs" (1844). Hence kickster "one who lives for kicks" (1963). The kick "the fashion" is from c. 1700. Kicks in slang also has meant "trousers" (1700), "shoes" (1904).
-y 2
adjective suffix, "full of or characterized by," from Old English -ig, from Proto-Germanic *-iga- (source also of Dutch, Danish, German -ig, Gothic -egs), from PIE -(i)ko-, adjectival suffix, cognate with elements in Greek -ikos, Latin -icus (see -ic). Originally added to nouns in Old English; used from 13c. with verbs, and by 15c. even with other adjectives (for example crispy). Adjectives such as hugy, vasty are artificial words that exist for the sake of poetical metrics.