SCALPER

n. one who cuts off the scalp of an enemy; one who buys and sells stocks quickly in order to earn quick profits; one who sells tickets at an inflated price (Slang)

Scalping is the act of removing the scalp, usually with the hair, as a portable proof or trophy of prowess in war. The practice has been known in Europe, Asia and Africa. Scalping is also associated with frontier warfare in North America, and was practiced by Native Americans and white colonists and frontiersmen over centuries of violent conflict.
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Noun
1. someone who buys something and resells it at a price far above the initial cost; "he got theater tickets through a scalper"
(hypernym) speculator, plunger
(hyponym) tout, ticket tout
(derivation) scalp

v. scalp, cut off the scalp of an enemy; buy and sell stocks quickly in order to earn quick profits; sell tickets at an inflated price (Slang)

(n.)
Same as Scalping iron, under Scalping.
  

(n.)
One who, or that which, scalps.
  

(n.)
A person who buys tickets for entertainment or sports events and sells them at a profit, often at a much higher price. Also, ticket scalper.
  

(n.)
A person who buys and sells the unused parts of railroad tickets.
  

(n.)
A broker who, dealing on his own account, tries to get a small and quick profit from slight fluctuations of the market.