What is Army Proof?
1.
To make something Army Proof, you take something that is
The MRE heating pack has instructions telling you to lean it on a "Rock or something"
The Claymore mine has "Front towards enemy" written on the front.
These are just a few items that have been made army proof
See
2.
Something so simplistic even the Army couldn't fuck it up.
ex. 1
Bob-"Man this this bottle top says 'twist' on it!"
Joe-"Shit's ARMY PROOF man."
ex. 2
"Dude, this tank is army proof, it says this side up"
See