slang for marijuana; refers to a joint, bowl, plant, or sac of marijuana
"Those young punks smoke the reefer"-Coach J
by PLAYBOY November 11, 2003
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weed/marijuana/grass/pot....whatever you wanna call it
by letsgetstoned June 17, 2005
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1) (Archaic) a marijuana cigarette. First attested in songs and literature from Harlem in the 1920s and 30s.

2) In modern usage: marijuana, not necessarily in the form of a cigarette.

3) A refrigerated truck or trailer.
Have you ever met that funny reefer man (reefer man)
Have you ever met that funny reefer man (reefer man)
If he say he swam to China
And he sell you South Carolina
Then you know you're talking to that reefer man.

- Cab Calloway, "Reefer Man"
by Fat Yeti September 14, 2010
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"If reefer really makes you happy nigga blaze it"
by Kezza213 July 22, 2006
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A cigarette consisting solely of the wicked weed. This, to my understanding, distinguishes it from a 'joint,' which is traditionally rolled with a combination of tobacco and marijuana. However, the american tradition of smot-poking consist mostly of rolling marijuana-only cigarettes, therefore the words 'reefer' and 'joint' are interchangeable.

The word 'reefer' probably comes from sailing terminoligy: when you 'reefer' the sails you narrow them and roll them up, and considering that modern marijuana use originated in the lower class, it's easy to see how a poor deckhand would associate this with the way he rolled his marijuana cigarette.
"Son, do you know why I pulled you over?"
"No, I don't officer."
"Well, it seems there's a reefer behind your ear . . . "
by Harper February 21, 2004
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