skeleton in the closet
US /ˈskel.ɪ.tən ɪn ðə ˈklɑː.zɪt/
UK /ˈskel.ɪ.tən ɪn ðə ˈklɑː.zɪt/

1.
esqueleto no armário, segredo embaraçoso
a shameful or embarrassing secret from the past that someone wants to keep hidden
:
•
Every family has a skeleton in the closet.
Toda família tem um esqueleto no armário.
•
His past arrest was a skeleton in the closet he hoped no one would discover.
Sua prisão passada era um esqueleto no armário que ele esperava que ninguém descobrisse.