"Youre a dirty pig" is a common way to say someone who is abusive in English. This can also be used to refer to someone who is rude or disrespectful, as in "You are a filthy pig."
In other words, "You are a disgusting person who speaks dirty words." It is also possible to use the expression "You are a nasty person," but this is not commonly used because it implies that you are not respectful and considerate of others. Instead, it is more appropriate to use "You are a disgusting person who uses foul language."