A member in organized crimes that loans an amount of money to people that are in need of fast, easy money. Loan Sharks tend to be violent if the client does not pay up, also ask for a much higher cash return then what was originally given.
Guy 1: Hey what happened to Louis?
Guy 2: Those Loan Sharks knocked his teeth out, and put his cat in the dishwasher!
Guy 1: He shoulda paid up!