clean as a bean
Proposed by a contributor, not yet supported by evidence.
Register: informal
Where it’s used:
Used
American English
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “clean as a bean” mean?
Very clean.
Is “clean as a bean” formal or informal?
clean as a bean is generally informal.