Case So Bad, Jury Excused From Service...
News0 min ago
No best answer has yet been selected by pat2936. Once a best answer has been selected, it will be shown here.
For more on marking an answer as the "Best Answer", please visit our FAQ.I thought that phrase originated from a song Boys, Keep Your Powder Dry that was popular among the soldiers in the U.S. Civil War (1861 - 1865). Their muskets shot black powder. Black powder is ineffective when damp or wet.
You can hear the words and read the lyrics here:
http://mariah.stonemarche.org/livhis/powderdry.htm