Today’s new word is mispostrophe.

mis·pos·tro·phe / mɪs ˈpɒs trə fi /

noun 
Mispostrophe refers to the misuse of punctuation, specifically of the apostrophe (’). Mispostrophe can refer to a spurious apostrophe, a word containing a spurious apostrophe, or the incorrect usage of the apostrophe. The fourth word of this sentence contains a mispostrophe: “The town’s recent immigrant’s voted overwhelmingly against the lottery, yet the will of the manier natives prevailed.”; “He entered the MENS restroom without even noticing the sign’s mispostrophe.”

Origin:
2010: intentional coinage by Steve Kass (http://www.stevekass.com).

Related forms:

mispostrophecate, mispostrophecation

anapostrophe: Mispostrophe of missing apostrophe. (“Dont smoke here.”)
dyspostrophe: Mispostrophe of misplaced apostrophe. (“Wer’e closed Mondays.”)
surpostrophe: Mispostrophe of spurious apostrophe. (“Apple’s on sale.”)

Inspired by Jonathan Coulton, who tweeted this confectionery mispostrophe.

Soft'ees