What is rough/sharp flour in Australia

As the title suggests. I have to make emergency šurlice pasta tonight from scratch and all the recipes say rough/sharp flour and I have no idea what to buy to satisfy that need. Extra points if you can tell me how to store boiled pasta over night to be served tomorrow (fml). https://konoba-nino.com/recipe-for-surlice/ submitted by /u/trashmmum