"What are you saying?" or "What do you mean?"
It can be used in a variety of contexts, depending on the tone and situation. Here are some examples:
* "Que dices?" (said in a questioning tone) - This would be used when you're genuinely confused or don't understand what someone is saying.
* "Que dices, hombre!" (said in a playful or teasing tone) - This could be used to express disbelief or amusement at something someone has said.
* "Que dices, ya no me acuerdo." (said in a dismissive tone) - This would mean "What are you saying, I don't remember anymore."
It's important to consider the context and tone of voice when interpreting the meaning of "que dices."