- GNARLY
- Twisted
- Twisted and knotty
- Like an old tree trunk
- Really cool
- Cool, dude!
- Bent and twisted, as a tree
- Knotted and twisted, as a tree
- Twisted, as tree trunks
- Like some old tree stumps
- Awesome, in surf-speak
- Very cool, in slang
- Excellent, in slang
- Challenging, informally
- Cool in '80s slang
- Cool, to a surfer
- Twisted, or cool
- Knotty
- Sick, to surfers
- Twisted, as an old tree trunk
- Totally rad
- Tubular, bro
- Radical, in slang
- Slang term that can mean either "very bad" or "very good"