Answer:
I mean goodbye for South Americans.
Package beneath a tree, inside a tasty treat. Keep it for a month, the taste is just as sweet. What am I?
I'm a precious stone in a pack of cards. What am I?
Curtail me thrice I am a youth; behead me once a snake; complete I'm often used in truth when certain steps you'd take.
I am the tool for inspiring many. Buy me in the store for not much more than a penny. Don't overuse me, or my usefulness will go. What am I?
I flow from the Homerβs mouth when he sees doughnuts.