November 03, 2016
Learner's Word of the Day
clean as a whistle /ˈkliːn ˈæz ə ˈwɪsəl/ idiom
clean as a whistle
/ˈkliːn ˈæz ə ˈwɪsəl/
idiom
The sink is as clean as a whistle.
The sink is as clean as a whistle.
Learner's definition of CLEAN AS A WHISTLE

informal

: very clean

  • We scrubbed the old boat until it was (as) clean as a whistle.

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