Limber is a frozen treat that's served in a plastic cup, almost like a frozen ice pop or Italian ice. The different flavors of limber can range from creamy to fruity and sometimes it's even filled with things like crunchy peanuts, bits of cake or brownie, and limber can even be infused with liquor for a boozy frozen ice cup. Some popular limber flavors are: peanut butter, cherry, cream, and coconut.