prebijati

1. to beat up
   Huligani su prebijali navijače posle utakmice. — Hooligans were beating up fans after the match.
2. to break in two; to break into pieces
   Deca su prebijala suve grane za vatru. — The kids were breaking dry branches for the fire.
3. (of debts) to offset; to settle
   Firme međusobno prebijaju dugove svakog meseca. — The companies offset their debts against each other every month.

The perfective is prebiti.