Adios amigos means bye friends. It's a sentence like CU later alligator and it doesn't need an answer. But you can say: AdÃos amigo/amiga (amigo for a male friend, amiga for a female friend) or:...
Adios Amogis Means Good-bye friends in Spanish... I don't know much spanish but I know for sure that it means that. You could have used google translator. It works and it's free.