cold turkeyyoudaoicibaDictYouDict[cold turkey 词源字典]
"without preparation," 1910; narrower sense of "withdrawal from an addictive substance" (originally heroin) first recorded 1921. Cold turkey is a food that requires little preparation, so "to quit like cold turkey" is to do so suddenly and without preparation. Compare cold shoulder.[cold turkey etymology, cold turkey origin, 英语词源]