no tener dos dedos de frente

Spanish

Etymology

Literally, “not to have a two finger forehead”.

"Dos dedos" (Two fingers) is an unofficial measuring unit, roughly 3 to 4 cm measuring one finger on top of the other, and it is used to mean that someone is not very smart, as shown by displaying a forehead that only measures 3 to 4 cm high(two fingers).

Verb

no tener dos dedos de frente (first-person singular present no tengo dos dedos de frente, first-person singular preterite no tuve dos dedos de frente, past participle no tenido dos dedos de frente)

1. (idiomatic) to be an idiot, to be thick as a plank

Further reading

• “no tener dos dedos de frente”, in Diccionario de la lengua española (in Spanish), online version 23.7, Royal Spanish Academy, 2023 November 28