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1.
A brand of electronic cigarette. The company has its headquarters in South Beach, FL, USA. Website: http://www.greensmoke.com/409.html
Whoa, Green Smoke is the best electronic cigarette I've ever tried!
by Pragmatic1 March 16, 2009
 
2.
the first toke on a joint. the person who lights the joint gets the first clean toke of green weed. after that every toke has resin.
"dude, gimme the green smoke!"

"nah man. the green smoke is mine"
by Ginger Kid-Rodriguez May 16, 2010
 
3.
a bilious invisible substance emitted by computers and their associated equipment screens, disc drives, etc. that is harmful to human cells and auras because of negative ionization. countered by the effect of mountain quartz.
her auro suffered that day. she was exposed to an overdose of green smoke while writing a term paper on her computer.
by krewkut August 17, 2006