G-jacked
To take something back from someone when they won't pay up. You can also call it repossession or renigg. It's like stealing back what's yours, but with more yelling.
I g-jacked my brother's video game because he wouldn't pay me for it.
She g-jacked my lunch because I said her pizza was gross.
He g-jacked my bike because he said I was a bad friend.