holy cats

holy cats or holy cow or holy mackerel or holy Moses  {interj.},  {informal}
- Used to express strong feeling (as astonishment, pleasure, or anger); used in speech or when writing conversation.
"Holy cats! That's good pie!" said Dick.
"Holy cow! They can't do that!" Mary said when she saw the boys hurting a much smaller boy.
Categories: anger feelings pleasure {informal} {interj.}