Poofus

"Mommy, you have to let me know when Zuki is going to die."
"Honey I don't know when he's going to die.  Hopefully not for a long time."
"Mommy.  When he dies, he will go POOFUS."  (claps her hands)
"Poofus?  Really?  Tell me about Poofus.  I don't know what that means."
"It means that there will be a bright bright light, it will turn white, and then it will go POOFUS! and then it will disappear."
"Oh?  And that's how we'll know?"
"Yes."
"Alright.  Well I'll keep an eye out for that, Cassidy."

Where does this girl come from. xoxox