Holds Water

Mr. Peck used the phrase "holds water" in a comment on a previous post. I can no longer hear that expression without recalling this exchange from My Cousin Vinny:

Vinny Gambini: Ms. Vito, it has been argued by me, the defense, that two sets of guys met up at the Sac-O-Suds, at the same time, driving identical metallic mint green 1964 Buick Skylark convertibles. Now, can you tell us by what you see in this picture, if the defense's case holds water?
Vinny Gambini: Ms. Vito, please answer the question: does the defense's case hold water?
Mona Lisa Vito: No! The defense is wrong!

So many great lines in that film!