Huckabuck

cold cup, frozen cup, hucklebuck, cold cup, dixie cup

A huckabuck, also known as a hucklebuck, a “cold cup”, or a “dixie cup” (referring to the paper or plastic cup commonly used to make it) is a homemade frozen dessert enjoyed by people in southern states particularly in louisiana and in georgia. it consists of a paper cup that is filled with some sort of sweet liquid like kool-aid, and frozen. children buy them on their way home from school from the candy lady for a dime, or sometimes a quarter; other things are generally sold with them: chips and candy. the trick to eating it is to flip the huckabuck over so the soft sugary part is at the top. then grab a spoon and dig in. they are still served to this day at the new orleans jazz festival...

Source: Wikipedia