aflojar las riendas

aflojar las riendas (first-person singular present aflojo las riendas, first-person singular preterite aflojé las riendas, past participle aflojado las riendas)

1. (idiomatic) to loosen up (act less seriously)

• “aflojar las riendas”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.7, Royal Spanish Academy [Spanish: Real Academia Española], 2023 November 28