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
Adalberto	ah-dahl-BER-to (Italian, Spanish), ə-dəl-BER-too (Portuguese)	Italian, Spanish, Portuguese
Gennaro	-	Italian
Kealoha	-	Hawaiian
Emilia	e-MEEL-yah (Italian, Spanish, Polish), E-mee-lee-ah (Finnish), e-MEE-lee-ah (Swedish)	Italian, Spanish, Romanian, Finnish, Polish, Swedish, Norwegian, Danish, English
Theotman	-	Ancient Germanic
TorbjÖRn	-	Swedish