Marijuana, weed, pot
What does "Reefer" mean?
Definition: A very broad slang term for marijuana or substances derived from marijuana. Can be used to refer to the buds themselves, but is also used to talk about a bowl, joint, or pipe. It's suspected the name originates with the Spanish word "grifa," which means a drug addict. The slang term was popularized through the movie “Reefer Madness," an infamous propaganda piece that attempted to demonize the cannabis plant and its users.
Example usage for Reefer
“Kids these days and their reefers are going to ruin this country.”