Mr. Clean

noun Informal.
  1. an actual or idealized person with an impeccable record, reputation, or image, especially a politician (sometimes used with Miss, Ms., or Mrs. instead of Mr. when referring to a female).
  2. such a person regarded as excessively virtuous; goody-goody (sometimes used with Miss, Ms., or Mrs. instead of Mr. when referring to a female).

Origin of Mr. Clean

First recorded in 1970–75; popularized as the trademark of a liquid cleaner
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018