Related Clues:
- Like a rock?
- __ as a rock (reliable)
- Like low-numbered billiard balls
- Strong language mostly found in grotty accommodation
- Firm Dandy Warhols song?
- '80s music show ___ Gold
- 1980s music show ___ Gold
- Ashford & Simpson lyric "___ as a rock"
- Very sound Warrant song?
- Assured Warrant song?
- A state of matter
- Solidly fixed
- Research leader in survey is resolute
- Not a liquid or gas
- Like any of eight billiard balls