Talk:johnny's en marina's

Is this an example of the greengrocer's apostrophe - or is it correct in Flemish?

No, it is correct, the plural of words that end in a long vowel, written with only one letter, is formed by adding "apostrophe+s"

sjonnies should thus be written without an apostrophe, because it ends in a long vowel that's written with two letters, like shampoo>shampoos or bureau>bureaus