Nug? Never heard of it.
In the game DragonAge Nugs are animals that populate the underground locations of Thedas. They are small, hairless, nearly blind creatures with pointed snouts for digging.They resemble a cross between a rabbit and a pig, or a naked mole rat or anaardvark.
or in Urban Dictionary,
1. A high quality bud of marijuana.
2. The Dank.
3. See ganja.
Gayle packed her last nug into the bowl and smoked it on the way to work.
Ah, here we are - in Wictionary's Glossary of Surfing:
- Slang for a good wave (Golden Nugget)
By comparison, 'nuffy' was practically 'antidisestablishmentarianism'.