What is an "EMO" to You?

What should I feel when they call me “emo”? How should I react?
When somebody call you such, what does it mean to you? Emotional? Yes, I am. But, they’ve never seen me crying. I don’t look lonely either. Maybe because of my words?, but I believe, it is not enough. I don’t wanna be called such. I don’t know why I feel irritated and pissed whenever they label me that. Will I be angry which sometimes I am. Or just don’t mind them and not get affected at all? All I know is that even if I’m lonely, I hide it. Even if I am sad, I am not weak. And that my patience has an end.