
What Does “clean as a whistle” mean?
Definition:
If someone is as clean as a whistle they are perfectly clean.
Example(s)
She’s clean as a whistle.
This idiom is in the music category.
  
If someone is as clean as a whistle they are perfectly clean.
She’s clean as a whistle.
Join thousands of English learners and teachers who get free tips, lesson ideas, and language insights straight into their inboxes.