pusher

Definitions

General English

  • noun a person who sells drugs illegally

Slang

  • noun a supplier of illicit drugs, especially addictive drugs. The word implies that the seller uses coercion or tries to lead people into addiction in order to profit from them (if this is not the case, dealer is the alternative). The term is now used by police, journalists, parents, etc. and only rarely by drug users or sellers.
http://www.dictionarycentral.com/definition/pusher.html