n. & adj.
--n. (pl. -ies)
1. a man unduly devoted to style, smartness, and fashion in dress and appearance.
2 colloq. an excellent thing.
--adj. (dandier, dandiest) esp. US colloq. very good of its kind; splendid, first-rate.
Phrases and idioms:
dandy-brush a brush for grooming a horse. dandy roll (or roller) a device for solidifying, and impressing a watermark in, paper during manufacture.
Derivatives:
dandyish adj. dandyism n.
Etymology: 18th c.: perh. orig. Andrew, in Jack-a-dandy