cock-a-hoopyoudaoicibaDictYouDict[cock-a-hoop 词源字典]
cock-a-hoop: [16] Cock-a-hoop comes from a 16th- and 17th-century expression set the cock on the hoop ‘make merry’ – but exactly how the expression arose is not clear. One obvious interpretation is that it meant ‘put the tap on the barrel’ – that is, let the wine or beer flow freely – but it has also been suggested that hoop here means ‘measure of grain’ (a sense which originated in the 16th century), the notion being that to put a cockerel on a heap of grain implied prodigality.
[cock-a-hoop etymology, cock-a-hoop origin, 英语词源]