speak your mind
US /spiːk jʊər maɪnd/
UK /spiːk jʊər maɪnd/

1.
dizer o que pensa, falar abertamente
to say exactly what you think, even if it is not polite or may offend someone
:
•
She's not afraid to speak her mind, even to her boss.
Ela não tem medo de dizer o que pensa, mesmo para o chefe.
•
If you want to change things, you need to speak your mind.
Se você quer mudar as coisas, precisa dizer o que pensa.