何なにを隠かくそう

expression

to be frank with you; to tell you the truth; I'm going to lay my cards on the table

Set phrase used as a preface when revealing something personal or surprising. Often followed by a confession or honest statement.

• 何なにを隠かくそう、実じつは私わたしも同おなじ失しっ敗ぱいをしたことがあるんです。

  To tell you the truth, I've actually made the same mistake myself.

• 何なにを隠かくそう、彼かれは昔むかしから大だいの猫ねこ好ずきなんです。

  To be frank with you, he's been a huge cat lover for a long time.