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2.
Euphemism for putting a pet out of its misery.
Skipper got run over by a lorry, so the vet had to send him to the green dream. Never really liked dogs anyway.
by Parsefone October 13, 2006
 
1.
The state of mind and disconnection from reality that can eventuate when smoking marijuana. In rare cases can occur without the use of the drug.
T: Hey Cam you keen to watch the All Blacks tonight?
Dan: He can't hear you dude, he's in the green dream.
Cam: wha.....sorry guys I just had the maddest idea!
by Zoster & Manus February 20, 2009
 
3.
A dream that is highly effected by the fact that you are high while you're going to sleep
Damn I had the craziest green dream last night...
by intrueglory October 09, 2010