Dictionary.com
Thesaurus.com
Synonyms

reefer

1 American  
[ree-fer] / ˈri fər /

noun

  1. Nautical. a person who reefs.

  2. a short, close-fitting coat or jacket of thick cloth, similar to a pea jacket.

  3. a woman's tailored, fitted, single- or double-breasted coat of durable material with a collar.


reefer 2 American  
[ree-fer] / ˈri fər /

noun

Slang.
  1. a marijuana cigarette.


reefer 3 American  
[ree-fer] / ˈri fər /

noun

Informal.
  1. a refrigerator, especially one large enough to be walked into.

  2. a refrigerator car, ship, truck, etc.


reefer 1 British  
/ ˈriːfə /

noun

  1. nautical a person who reefs, such as a midshipman

  2. another name for reefing jacket

  3. slang a hand-rolled cigarette, esp one containing cannabis

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

reefer 2 British  
/ ˈriːfə /

noun

  1. a ship, lorry, or other form of transport designed to carry refrigerated cargo

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of reefer1

First recorded in 1800–10; reef 2 + -er 1

Origin of reefer2

An Americanism dating back to 1920–25; origin uncertain; possibly from Mexican Spanish slang grifo, grifa “under the influence of marijuana”; griefo

Origin of reefer3

An Americanism dating back to 1910–15; alteration and shortening of refrigerator