History of words and phrases
Chic: The word denotes an outfit, object or place that exudes sophistication and style. From the German (not French) word "schick," meaning fashionable.
Clean 'round the bend: Completely crazy or eccentric. Said to be an old naval term for anybody who is mad.
Pass the acid test: Someone or something that has been subjected to a conclusive test. From the gold rush era as a method of testing for real gold.