Ésto (en. This)
/ˈes.to/
Slang Meanings
It is used to emphasize the importance of something in a conversation.
This really is important!
¡Ésto sí que es importante!
It is used to refer to something that has been previously mentioned in a casual tone.
Do you remember what we talked about? This is what I meant.
¿Recuerdas lo que hablamos? Ésto es lo que quería decir.