for shame
An expression of angry or disappointed condemnation. For shame! You know better than to steal your sister's toys! I can't believe she took advantage of your feelings like that—for shame!
For shame!
That is shameful! Sue: Did you hear that Tom was in jail? Fred: For shame! What did he do? Sue: Nobody knows. Mary: I've decided not to go to the conference. John: For shame! Who will represent us?