Impostorphe 

The apostrophe serves to show possession or to create a contraction. When the apostrophe is in a contraction, it is replacing one or more letters (e.g., "cannot"->"can't"... the apostrophe replaces the letters "no").

Since an apostrophe isn't those letters, it is an impostor.

Therefore, when the apostrophe is used in a contraction, it is called an "impostorphe."

Them -> 'em (' replaces "th") as in "Let's get 'em!"

The impostorphe is the subsitute or "impostor" for the letters it replaces.

Impostorphe by Xenoglott May 16, 2010

Impostorphe 

An incorrectly placed, unnecessary, or missing apostrophe.

Included in this are greengrocer's apostrophes, but any misused apostrophes can be classed as impostorphes, especially unneeded ones, and ones put in the wrong place.

The impostorphe in that sign reading "Do not feed the pig's" should be destroyed.

Impostorphe by isaac274 November 3, 2014

impostrophe 

(n.) The all-too-common typographical error masquerading as an apostrophe, especially on the internet. The apostrophe is also known as an inverted comma since, in its correct form, it does not look like this: ' , but rather like a comma that sits above the baseline.

You bloody art directors are all the same. Kindly remove that impostrophe and replace it with the geniune article.

impostrophe by el revez May 13, 2004

impostorphobia 

The fear of being sus.

I feel sus. I have impostorphobia

impostorphobia by John June 17, 2021

impostrophe 

An apostrophe that's unnecessary. Usually added by people who don't have good grammar skills. It can be found almost anywhere, esp. on social media, like Facebook and Twitter, among others.

Bob noticed the sign on the shop's door read, "Open M-F, 9-5; Sat., 10-4; Closed Sunday's," and realized that the apostrophe wasn't necessary. Thus, he deemed it an impostrophe, or an apostrophe trying to "fit in."

impostrophe by Wordmeister 5000 May 6, 2018