be as clean as a whistle

be as clean as a whistle

if someone is as clean as a whistle, they are not involved in anything illegal He hasn't got a criminal record - he's clean as a whistle.
See also: clean, whistle

be as clean as a whistle

  also be as clean as a new pin
to be very clean The café's as clean as a whistle, and the food's excellent.
See also: clean, whistle