Lost in Translation

From the back seat of the car:

Matěj: "Mabayamaba."
Jakub: "No, you can't go there, it's too far."
Matěj: "Babayamaba."
Jakub: "No, I said it's too far."
Matěj: "Nayayama."
Jakub: "We can fly there. You can go, and mommy can go, and daddy can go, and Jindříšek will be there and so will Aunt Katka."