Grocer's Apostrophe

The Apostrophe Demon
By C. Williams
(Library of Congress[1]) [Public domain],
via Wikimedia Commons
Apostrophe use can be pretty hellish.

Sometimes a grammatical error becomes so common it gets its own name.   I give you the "Grocer's Apostrophe".

Definition

Encyclopedic entry 

Just because there's an official name for the usage doesn't mean it's a legitimate use of the language.

Fascinating, n’est pas?

People making fun of apostrophal misuse:

http://www.apostropheabuse.com/

http://www.apostrophecatastrophes.com/

http://www.flickr.com/groups/apostrophes/

https://twitter.com/Apostrophecops

http://rebecca-writes.blogspot.com.au/2011/09/misused-abused-apostrophes.html

Not sure how to use an apostrophe?  The Oatmeal explains all.  Will illustrations.