the world > action or operation > harm or detriment > disadvantage > uselessness > inexpediency > be inexpedient [phrase] (2)
colloquial. that cock won't fight: used to express the opinion that a particular plan or approach will not succeed. Cf. that dog won't hunt at dog…
North American colloquial. that dog won't hunt and variants: used to express the opinion that a particular plan or approach will not succeed. Cf. t…