that's what ... is about
That's what I was talking about.
Y de eso es de lo que quisiera hablar.
And that's what I'd like to talk about.
De eso es de lo que estaba hablando.
That's what I was talking about.
De eso es de lo que quería hablarte.
That's what I wanted to talk to you about.
De eso es de lo que estoy preocupado.
That's what I'm worried about.
That's what it's all about.
That's what I'm talking about.
Así que de eso es de lo que hablaremos hoy.
So that's what we'll be talking about today.
— ¡Que te den profe! (2013)