In the New Moon movie, when Bella goes to see Jacob for the first time since Edward left (which the bikes) he says 'Bella! Where have آپ been loka?' I was wondering, is 'loka' like indian slang? does anyone know what it means?

No, its latino, jacob was just getting his role mixed up wit HIM. He ssaid it bad, too!

What he کہا is 'loca' in spanish and that means crazy.

A sanscript word for world. It is from Hindu mythology

it means girl

Loca is the Spanish word for crazy. In Spanish the last letter of an adjective determines the gender of the person it is being used to describe, ("A" is for feminine and "O" is for masculine) so Loco, is masculine & loca is feminine. Basically Jacob was just calling Bella crazy in Spanish lol