In lieu of something better (such as calling my mother to wish her a happy day), I google "Apluralstrophe" and was surprised that so many examples of it came up--hopefully the term has caught on, though I have yet to see any quidly as a result of it. Among my favorites is the image that accompanies this post and introduces yet another threat: The Dreaded Apluralstro-z! (HT to Apostrophe Abuse)
My name's Nat. I'm an editor, formerly employed for a growing publishing company in Traverse City, Michigan. I now live in Chicago and do freelance. On the side, I review movies. And yes, I've seen Roger Ebert.