1. The next level of "Really Really Dank Marijuana." Most likely cultivated in Humboldt, Trinity, and/or Mendocino Counties of Northern California.
2. A term used for extremely potent marijuana.
3. Home-grown Marijuana that stinks up an entire house when exposed
"Dude, I burned some gnarly buds down from Humboldt, and now I can't even MOVE."
"I took a few bong rips of this gnarly bud. I'll be blazed for half the day now."