Cocaine is a white powder. It can be snorted up the nose or mixed with water and injected with a needle. Cocaine can also be made into small white rocks, called crack. It's called crack because when the rocks are heated, they make a cracking sound. Crack is smoked in a small glass pipe.
Cocaine can make a person feel full of energy, but also restless, scared, or angry.
Some slang names for cocaine are: