schnook (n.)youdaoicibaDictYouDict[schnook 词源字典]
1948, probably from Yiddish shnuk "elephant's trunk," or altered from schmuck (q.v.), or perhaps from German schnucke "a small sheep," used in U.S. Yiddish for "a customer easily persuaded, a sucker."[schnook etymology, schnook origin, 英语词源]