This is the name of the character in Motley Crue's Hit song Dr Feelgood. Dr Feelgood is a drug dealer that sells cocaine and other drugs to the mexican mob. HE is feared by police oficers and has them on his payroll. Since he distributes so much drugs the people on the streets refer to him as Dr feelgood since he is the one you go to get a fix. The song ends with Dr Feel good getting arrested.

A term used to reference cannabis/marijuana/weed.

The doctors who simply prescibe medicines instead of finding the real ailment.

A licensed physician who mainly supplies amphetamines and other drugs for a fee.

Personification given to mainly booze, and sometimes referring to other drugs. Generally used to refer to drugs when a person is feeling down and a person is saying it's what they need and/or use to feel better.

originally a phrase coined by Mötley Crüe in their song "Dr. Feelgood" Dr feelgood is a person who sells/deals drugs(coke, week etc.) on a street corner.

Cocaine

Also the title track of a Mötley Crüe album