all wet
US /ɔl wɛt/
UK /ɔl wɛt/

1.
completamente equivocado, errado
completely wrong or mistaken about something
:
•
If you think I'm going to agree with that plan, you're all wet.
Si crees que voy a estar de acuerdo con ese plan, estás completamente equivocado.
•
His predictions about the election turned out to be all wet.
Sus predicciones sobre las elecciones resultaron ser completamente erróneas.