my lips are sealed

US /maɪ lɪps ɑr siːld/
UK /maɪ lɪps ɑr siːld/
"my lips are sealed" picture
1.

mis labios están sellados, no diré nada

used to say that you will not tell anyone a secret

:
Don't worry, my lips are sealed. I won't tell anyone about your surprise party.
No te preocupes, mis labios están sellados. No le diré a nadie sobre tu fiesta sorpresa.
She asked me to keep it a secret, and I told her, 'My lips are sealed.'
Me pidió que lo mantuviera en secreto, y le dije: 'Mis labios están sellados.'