IDK how many of these were used in ww2 but i thought it was interesting List of U.S. Army acronyms and expressions - Wikipedia, the free encyclopedia
Hahahaha!! Some of these are pretty good! BCGs — Birth Control Glasses — The 50s style black or brown horn-rimmed glasses that were formerly standard issue, currently still standard issue in basic training. Named for their ability to make anyone sexually unattractive. Fart Sack — a sleeping bag Chicken shit -This term started during the second world war. It is used to either describe the abuse an officer gives his enlisted subordinates or to describe the officer himself. E.g. "That was really chicken shit what he did." "That LT is chicken shit, through and through".
Lock and Load is from WWII. Fire in the hole was an expression used during WWII, although this expression dates back hundreds of years and to another occupation - mining. But it's a general warning shouted out to warn people of an imminent explosion.