Gajal
A smelly, backstabbing, fake friend who acts nice just to get what they want. They're like a pig in a trash can, gross and full of themselves.
My gajal friend said they'd help me cheat, then told the teacher on me.
He smiled at me in class, then leaked my lunch money to the bullies.
She promised to be my partner in the project, then took all the credit when we finished.