Hablando del rey de Roma----
Here's another little phrase for you to work on.
Hablando del rey de Roma, por la puerta se asoma.
What can Spanish speakers possibly mean by that??

4 Answers
En nuestro país en vez de rey de Roma se dice : Rememorando el lobo, él está ya en el alrededor del jardín.
In our country instead of king of Rome it is said: Recalling the wolf, he is already around the garden.
Talk of the devil, and he'll appear.
Well, here if you and someone are speaking about a third person, and that third person appears, you would say "Speak of the devil!!"
Hablando de ángeles y aparecen
Una religiosa católica me dijo esto cuando llegué tarde a trabajar para ella.
Speaking of angels and they appear .
A Catholic nun said this to me when I arrived late for work for her .