n. & adj. US
n. 1 colloq. a small coin of little value, esp. a 5-cent piece. 2 an insignificant person or thing.
adj. mean; contemptible; petty.
[ F picaillon Piedmontese coin, cash, f. Prov. picaioun, of unkn. orig. ]
PICAYUNE
Meaning of PICAYUNE in English
Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012