To dream of a drug dealer suggests that you have some dishonesty around you. You might want to rethink who your current friends are. You need to take your life in a more positive direction - are your friends holding you back from this?
[1]1. Satan;
2. Witchcraft;
3. Dependence; John 10:10; Luke 4:5-6; Rev. 12:9.
[2]See “blood-money” and “prostitution”
[3]