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

1.
esqueleto en el armario, secreto vergonzoso
a shameful or embarrassing secret from the past that someone wants to keep hidden
:
•
Every family has a skeleton in the closet.
Cada familia tiene un esqueleto en el armario.
•
His past arrest was a skeleton in the closet he hoped no one would discover.
Su arresto pasado era un esqueleto en el armario que esperaba que nadie descubriera.