口くちから漏もれる

expression, ichidan verb

slip out; escape one's lips

Used when words or information come out unintentionally, often despite an effort to keep them in.

• つい本ほん音ねが口くちから漏もれてしまった。

  My true feelings accidentally slipped out.

• 秘ひ密みつが口くちから漏もれないように気きをつけて。

  Be careful not to let the secret slip out.