whistle(redirected from clean as a whistle)
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1. A sound made by forcing air through a narrow opening such as pursed lips.
2. An instrument for producing a whistle.
Farlex Partner Medical Dictionary © Farlex 2012
1. A sound produced by pursing one's lips and blowing.
2. A tubular device driven by wind that produces a loud and usually shrill sound.
Medical Dictionary, © 2009 Farlex and Partners