creeping crud
n.— «Pharmacists who don’t write the name of the medicine on the bottle, only the name of the doctor (illegible) and a number. So six months later you can’t use your specific for creeping crud because you don’t know which bottle to shake well.» —“Criticall Speaking” by Robert Pollak The Austin News (Chicago, Illinois) May 19, 1965. (source: Double-Tongued Dictionary)
Further reading
After our chat about tongue twisters, a Chicago, Illinois, listener shares one that looks much easier than it sounds: Irish wristwatch. This is part of a complete episode.
Related
Michael from Jones, Michigan, says he was stationed on a U.S. Army base in Germany in the early 1960s. If there was a gust of cold wind, a fellow soldier would say the hawk’s out. This expression is largely associated with Chicago, Illinois...