Last seen in:
- Universal - Sep 8 2023
- L.A. Times Daily - Jun 10 2022
- The Washington Post - Jun 10 2022
- New York Times - Apr 15 2022
- New York Times - Sep 2 2018
- The Washington Post - Jul 5 2018
- L.A. Times Daily - Jul 5 2018
- The Washington Post - Jan 5 2018
- L.A. Times Daily - Jan 5 2018
- Thomas Joseph - King Feature Syndicate - Dec 3 2016
Related Clues:
- This may work on your block
- NaOH or KOH
- Strong cleanser
- Liquid-Plumr rival
- Popular pipe cleaner
- Tough cleaner
- Carpentry tool
- Soap ingredient
- 2001's symbol, in the Chinese calendar
- Sodium or potassium hydroxide
- Moccasin without laces
- Drain cleaner ingredient
- Caustic stuff
- Caustic chemical
- Soap-making compound