When you get so high you simply forget what happened last night
Muchacho Uno: Hey, do you think I left my credit card at Taco Bell?

Muchacho Dos: We went to Taco Bell?

...

Señorita 1: Muchacho Dos, don't worry I greened out too.
by Butcher•D, boooiiiii November 5, 2015
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When you smoke so much weed that those little thoughts in the back of your head that are kind of anxiety inducing come straight to the front of your head like a goddamn bus like it'll have you be in paranoid of every little thing or you'll get so high that you don't feel well or you'll get so faded that you just pass the fuck out
Ex: yo, I took way too many hits off the pipe bro. I don't feel very good I think I'm greening out *passes out*
by A fuck-nut February 19, 2023
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When you get so stoned out of your face, your face turns
green and are at the point you are going to puke.
O man look at murph, he is going to green out!
by kyle brake May 9, 2008
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TO pass out from smoking too much weed
did i smoking so much weed i am greening out tonight
by itokeweed August 15, 2009
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Term used to describe someone who is wrong or is confused or is messing up so badly, it is as though they are greening out.
"Lucas, your phone has been in your hand this entire time, stop looking for it! You're acting like your greening out!"
by yolo_Swag 69 January 23, 2019
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1. Feeling seedy in the head and or in the stomach from smoking weed.

Face goes green and the person feels like throwing up.

2.When your not getting stoned but you keep smoking and you just feel sick (sore muscles, seedy and drained in the head).

3.When one bong blows you out to sleep cause you haven't smoked in a while.

Usually happens when: A person can't finish a cone 'cause it hits them too hard and their oversmashed instantly. At this point it can become a whiteout.
Every party that bitch would try smokin' with us, but she would just GREEN OUT, even spewed all over my mans bed.
by Brooke Legs March 25, 2017
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Greening out is when one who takes cannabis (THC) products goes to sleep, throws up, or coughs and gags until the “high” goes away. Greening out is very common for new users of cannabis or users who smoke a stronger strain than what usually use to.
P1:Hey, want to smoke tonight!?
P2:Yeah for sure!
P1:Be careful! This isn’t your regular strain.
P2:Yeah, I can see that i’m high already.
P1:I’m going to go get some snacks.
P2:Yeah, hurry up i got the munchies!
P1:(Leaves*)
P2:(Falls asleep*)
P1:(Enters*)
P1:Awww man you greened out.
by greenyvibin May 1, 2022
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