\Scalper\ (sk[a^]lp"[~e]r), n. 1. One who, or that which, scalps. 2. (Surg.) Same as {Scalping iron}, under {Scalping}. 3. A broker who, dealing on his own account, tries to get a small and quick profit from slight fluctuations of the market. [Cant] 4. A person who buys and sells the unused parts of railroad tickets. [Cant]