Nitty

Noun / UK Slang

Nitty is used to describe someone who is addicted to drugs. It is often used informally and can carry a derogatory connotation.

Example: “Stay away, he is a nitty”
Means: “Stay away, he is a drug addict.”

Example: “There are loads of nitties in that area”
Means: “There are many people addicted to drugs in that area.”