How to say portable cooler in Australian. Esky, portable cooler, esky, portable cooler. Now, you try. For example, you might say remember to pack the esky with beer 'n prawns for the picnic. Food in Australian is tucker. Food, tucker, food. Now, you try. After eating the food from the esky, you might say that was good tucker. And that's how you say portable cooler in Australian.