Here's one that makes me cringe: "Persons" this and "Persons" that!
I know it's done to avoid using "man," but it still drives me crazy because with a little thought I'm sure there is a better way to get around using "man" than substituting "person."
The worst cringe-inducer is the term for an afternoon professional baseball game played on a weekday. These games used to be called "Businessman's Specials," for the "businessmen" who would sneak away from the office to attend them, but that term can't be used anymore, so now they are "Businessperson's Specials."
Since these games are played on a business day, why not "Business Day Special"?
Here's another that relates to local politics.
The members of Philadelphia City Council are elected by district. The members of Council, male and female, are still called "councilmen," and their districts are called "councilmanic districts."
"Councilmanic" makes me think of a member of the Council jumping around, waving his or her arms in the air, and shrieking hysterically. ...
Would it be so difficult to call the members of Council "representatives," and their districts simply "Council districts"?