tutear
Meanings
Verb
1. to address someone informally with tú, rather than the formal usted or the informal pronoun vos used in certain countries; to thou (transitive)
Examples3
Puedes tutearme.
You can call me "tú."
En español se tutea a Dios.
In Spanish, you use "tú" when talking to God.
Querido niño, te agradecería que no me tutearas.
Dear child, I would prefer that you not address me so informally.