Caramba, no esperaba que me dijeras eso.
Wow, I didn't expect you to tell me that.
Context: society Cuando llegó mi amigo, exclamé: '¡Caramba, qué sorpresa verte aquí!'
When my friend arrived, I exclaimed: 'Wow, what a surprise to see you here!'
Context: social interaction Esa película era tan emocionante que, al final, dije 'Caramba, qué final inesperado.'
That movie was so exciting that, in the end, I said 'Wow, what an unexpected ending.'
Context: entertainment