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.

Common Names:

Name	Pronounced	Usage
Vitaliy	vee-TAH-lee (Russian)	Russian, Ukrainian
Wigburg	-	Ancient Germanic
Linnette	li-NET	English (Rare)
Roxelana	-	History
Chawwah	-	Biblical Hebrew
Hannah	['hænə]