UXO
n.— «The painstaking, dangerous work of removing unexploded ordnance, or UXO as it is known, is taking much longer in Vietnam than anyone wishes, researchers and ordnance experts say.» —“Hidden bombs stalk Vietnamese as states seek treaty” by Grant McCool in Dong Ha, Vietnam Reuters Mar. 7, 2007. (source: Double-Tongued Dictionary)
Further reading
Tommy in Lexington, Kentucky, reports that when he was serving in the U.S. military in Vietnam he heard the expression Mox nix, meaning “I don’t care” or “It doesn’t matter.” It’s a version of a German es Macht nichts, or “It’s nothing.” This is...
Debbie from Crawfordsville, Florida, says that when she and her husband reach an impasse while working on something, they’ll say Let’s grok about it, which they use to mean “Let’s think about it.” Grok was coined by science fiction writer Robert...