AMFYOYO or Adiós Motherfucker You're On Your Own! is used when your parental, avuncular, familial, or tutelary entity etc. has had enough of your shit, and consequently kicks you to the curb.
Mom: Hey sweetie, your father and I are going for Mexican tonight and shan't be troubled by your antics!
Offspring: But what should I do for dinner?
Parentals: AMFYOYO!