Greengrocer's apostrophe
From Hull AWE
The so-called Greengrocer's apostrophe is the incorrect use of the apostrophe in a plural. Be sure to avoid this mistake in your writing!
This is a good example of academic snobbery. Greengrocers are not the only people capable of using apostrophes simply (and wrongly) to show the plural. But "tomato’s" and "pot’s" are not uncommon...
