What's the story of the name?
In slang Arabic in some parts of Saudi Arabia and the Arab world, we find that people add the letters J and Y to denote the person who works in a particular workmanship. For example, "Khodarjy" is used to call the person who works in a "Khodar" vegetables shop, Jawaherjy is used to call the person who works in a "Jawaher" jewelery shop, and "Dokanjy" is used to call the person who works in a "Dokan" or a shop.
In English, the grocer is the person who sells groceries. Hence we came up with the idea of using the word grocer and adding the same two letters, J and Y, to denote that he is a grocer similar to the Arabic format. And so we have become Groserjy!