Greenout
noun, slang ·Moderate ·College level
Definitions
- 1 The sensation caused by seeing plants again after a period in Antarctica. countable, uncountable
"One of my favourites is 'greenout', for which I only found a single quotation, which is the experience you have when you've been in Antarctica which has very little vegetation, no trees or shrubs, not many smells of the vegetation, and you come back after weeks, months or a year or more to a vegetated place and the warm air is blowing off the continent that you're coming towards and you have a 'greenout' - you're overwhelmed by the sensations."
- 2 A feeling of sickness as a result of consuming excessive amounts of cannabis. countable, slang, uncountable
"It [The Cannabis Kitchen Cookbook] also offers constant reminders about dosages and prudent consumption, so that noobs don’t do a Maureen Dowd and abandon pot after a single greenout."
- 3 A green sign patch applied to a guide sign. California, countable, informal, uncountable
"There's again the greenout for "West," but what would have been greened out underneath "Junction"?"
Example
More examples"One of my favourites is 'greenout', for which I only found a single quotation, which is the experience you have when you've been in Antarctica which has very little vegetation, no trees or shrubs, not many smells of the vegetation, and you come back after weeks, months or a year or more to a vegetated place and the warm air is blowing off the continent that you're coming towards and you have a 'greenout' - you're overwhelmed by the sensations."
Etymology
From green + out. Compare English blackout, whiteout.
More for "greenout"
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.