Consuming enough marijuana to constantly maintain a layer of THC on the brain's neurotransmitters. It takes the average human around 3 weeks off the weed for the neurons to flush themselves. After prolonged periods of habitual use, the THC affected neurotransmitters are covered by more and more layers of THC creating a stronger permanent high, noticeable throughout daily life, high or not. This phenomenon is directly related to why tolerance breaks are utilized and effective for people who notice they need to smoke more to get that same euphoric high. AKA: PERMACHOPPED
Andy: Aye James let's blow pack tonight!
James: Nah man my permahigh is getting too strong, I can't even concentrate on my book anymore.
Andy: You fuckin' druggo

James: I need a T-Break
by OBEEZ January 2, 2017
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The action of being constantly high (permanent-high)
Man this dudes fucked up he's a Permahigh mothafucka
by Hubert Girard May 7, 2007
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when some one has smoked so much marijuana that they have wrinkles around their eyes from their eyes being set back alot. this makes them always look high, or permanantly high
(guy 1 takes off sunglasses)
guy 2: dood, are you high right now?
guy 1: no
guy 2: oh, i guess iv never seen you without sunglasses
guy 1: ya, iv got permahigh
by ford408 May 26, 2009
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Chill Slayers commentating, "Dood, I think I'm perpetually high."
Dood1: "Whats up Chill?"
Chill: "Dood, I think I'm permahigh high, bro."
by DirtNastyOG November 18, 2010
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