holy cats

[holy cats] or [holy cow] or [holy mackerel] or [holy Moses]{interj.}, {informal} - Used to express strong feeling (asastonishment, pleasure, or anger); used in speech or when writingconversation.

"Holy cats! That's good pie!" said Dick.

"Holycow! They can't do that!" Mary said when she saw the boys hurting amuch smaller boy.