[smack] n [ME, fr. OE smaec; akin to OHG smac taste and prob. to Lith smaguris sweet tooth] (bef. 12c) 1: characteristic taste or flavor; also: a perceptible taste or tincture
2: a small quantity
[2]smack vi (13c) 1: to have a taste or flavor
2: to have a trace, vestige, or suggestion "a proposal that ~s of treason" [3]smack vb [akin to MD smacken to strike] vt (1557) 1: to close and open (lips) noisily and in rapid succession esp. in eating
2. a: to kiss with or as if with a smack b: to strike so as to produce a smack ~ vi: to make or give a smack [4]smack n (1570) 1: a quick sharp noise made by rapidly compressing and opening the lips
2: a loud kiss
3: a sharp slap or blow [5]smack adv (1782): squarely and sharply: directly "~ in the middle" [6]smack n [D smak or LG smack] (1533): a sailing ship (as a sloop or cutter) used chiefly in coasting and fishing [7]smack n [perh. fr. Yiddish shmek sniff, whiff, pinch (of snuff)] (ca. 1960) slang: heroin