not hold water

not hold water

To not be or not appear to be true, verifiable, or able to be supported by facts. The image is of a container with holes in it—a metaphor for a position or argument containing "holes" (errors or gaps in reasoning). I'm afraid that excuse just doesn't hold water with me—you still should have had plenty of time to complete the assignment and print it. That old claim has been debunked so many time that it just does not hold water any more.
See also: hold, not, water

not hold water

 
1. Lit. [of a container] not able to contain water without leaking. This old wading pool won't hold water any longer.
2. Fig. not able to be proved; not correct or true. Jack's story won't hold water. It sounds too unlikely. The police's theory will not hold water. The suspect has an ironclad alibi.
See also: hold, not, water

won't hold water

to be inadequate, insubstantial, or ill-conceived. Sorry, your ideas won't hold water. Nice try, though. The prosecution's case wouldn't hold water, so the defendant was released.
See also: hold, water

not hold water

COMMON If a theory or an argument does not hold water, you can prove that it is wrong. That explanation does not hold water, according to senior intelligence sources. It doesn't really matter that not all of the film's arguments hold water. Note: You can also say that a theory or an argument holds water, meaning that it is true or right. If these arguments hold water, then we may have to rethink our policy.
See also: hold, not, water
References in classic literature ?
Other birds, said Solomon, omitted to line their nests with mud, and as a result they did not hold water.
The argument given that the coalition is using the truce as a five-day window to regroup does not hold water.
But parts of this argument that seem plausible at first do not hold water.
The administration has put the cart before the horse throughout this process and is learning the hard way that the Ashington scheme does not hold water, as projected costs are spiralling and basic matters like sufficient parking spaces have not even been properly addressed.
That argument does not hold water really, I mean, he had proved a hit at previous club Reading and leafy Berkshire is as far just about from the 'Beautiful North' as Cardiff is.
The reason for the objection also does not hold water as it is not an event involving the public or the rest of the legal fraternity.
Your argument about wearing out the clutch does not hold water, as I have no clutch.
TEHRAN (FNA)- The comic image of Canada as the "great" defender of human rights does not hold water when it's a matter of First Nations' rights.
The 'we can't do anything about it' argument simply does not hold water," concluded Stein.
However, this explanation does not hold water because the latitude where Iran said the drone landed is far from the latitude of Shindand.
Here, the argument of the committee members that these coaches could not perform in a short period of two months does not hold water, because what happened with the wrong selection on likes and favoritism was that, for the first time in the history of the T20 World Cup, our team failed to reach the semi finals stage.
We will not be able to adopt and accept any agreement that keeps Iran within a range of months to a year from nuclear weaponry, because such an agreement would not hold water," Steinitz said, reiterating Israel's demand that its arch-enemy be stripped of nuclear capabilities.
The argument that these systems are too well protected for an attack to cause this much damage simply does not hold water - one only has to look at the US government and Department of Defence, both of which are compromised on an almost regular basis.
The defeat of the favorites has sparked off rumours that the game was rigged though they do not hold water.
The judge further explained that suggestions he was against Peevski because his son is a senior GERB member did not hold water as two of his colleagues, one nominated by the same party and the other by the President, have supported Peevski's return to Parliament.