O.N.Y.D oh no you didn't
You say this when someone does something so bad it makes you want to run away and hide.
Your mom says she tried to knit a sweater and ended up with a ball of yarn. You: 'O. N. Y. D oh no you didn’t!'
Your dad says he tried to sing in the shower and scared the neighbors. You: 'O. N. Y. D oh no you didn’t!'
Your friend says they tried to juggle three apples and dropped them all. You: 'O. N. Y. D oh no you didn’t!'