back the wrong horse

US /bæk ðə rɔŋ hɔrs/
UK /bæk ðə rɔŋ hɔrs/
"back the wrong horse" picture
1.

apostar no cavalo errado, fazer a escolha errada

to support a person or thing that is not successful or that turns out to be a bad choice

:
I really backed the wrong horse when I invested all my savings in that failing company.
Eu realmente apostei no cavalo errado quando investi todas as minhas economias naquela empresa falida.
Many critics felt the director had backed the wrong horse with his experimental film.
Muitos críticos sentiram que o diretor havia apostado no cavalo errado com seu filme experimental.