Reefer

Reefer may refer to:

• Reefer (container) - a refrigerated container
• Reefer (ship) - a refrigerated sailing vessel
• Reefer (railroad) - a refrigerated boxcar
• Reefer (jacket) - a type of jacket originally worn by sailors of the Royal Navy
• Reefer (slang) - marijuana, or a marijuana cigarette (see, for example, the film Reefer Madness)