It can mean either:
a) You don't have anything
b) You're not doing anything important.
Friend: "Hey, dude, do you have a cigarette or any bud?"
You: "Nadas dude, i'm sorry..."
Friend: "What are you doing right now?"
You: "Nadas, just chilling at home..."
and tears fall from her eyes with the beauty of the glittering drops of rain(nada) bathing in the sun's warmth the ecstasy as great as its anguish
Nada is a beautiful girl,usually with dark hair and skin white as Snow White.She can be very mysterious and shy.
She is extremely intelligent and sarcastic person.Nada is a very good friend and a very good person,but when you annoy her,you wish you didn't exist.She has a tendency to be late.
If she has a friend named Ana,watch yourself,they can be pure evil since Ana corrupts lovely people like Nada.
Overall Nada is an awesome person with amazing tastes in music and everyone enjoys being her friend or a boyfriend.Or they can dream about it.
Guy 2:Yeah...she is too good for you.
Guy 2:She is too smart and pretty for you.You will look like a fool next to her.
Guy 1:How do you know?
Guy 2:Her name is Nada.