skeleton in the closet

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