In Mexico, when someone is too stupid we say "no rebuzna porque no se sabe la tonada" and I think that’s beautiful.
@Migueldeicaza I have a soft spot for the series of “le faltan X para Y”. “ le faltan cinco pal peso. Le faltan sánguches pal picnic.
@adriano oh that’s a new one! I have been away for too long!
@Migueldeicaza @adriano in Spain we use to say "le falta un hervor"