Hi. In England it can mean both. You can say this to someone who does not like to part with their money. In this case the meaning is 'You're so stingy'. You can also say it when someone is playfully teasing you. In this case the response is a playful 'You're so bad.' However you can also say 'You're so mean' when someone is being genuinely mean and nasty towards you or someone else. In this case, you would simply say 'You're so mean', as opposed to the two other options. I hope this helps. Tim

Mean is not nice. I work in a daycare and one of my toddlers keeps hitting other kids. He is very "mean". He is not nice.

That means "Why don't you want to spend more money?", "Why are you a miser?", "Why are you a Scrooge?" Hope it helps ;)

"Mean" means that you do or say things to hurt other people. "Stingy" means that you're very tight with money to the point where it's annoying.

You're so wicked. you're evil..bad ..something like that.