own up
US /oʊn ˈʌp/
UK /oʊn ˈʌp/

1.
admitir, confessar
to admit that you have done something wrong or embarrassing
:
•
It's time to own up to your mistakes.
É hora de admitir seus erros.
•
No one would own up to breaking the vase.
Ninguém queria admitir ter quebrado o vaso.