Whitewash
 

whitewash
noun1.a defeat in which the losing person or team fails to score2.wash consisting of lime and size in water; used for whitening walls and other surfaces3.a specious or deceptive clearing that attempts to gloss over failings and defects
verb1.cover up a misdemeanor, fault, or error; "Let's not whitewash the crimes of Stalin"; "She tried to gloss over her mistakes"2.cover with whitewash; "whitewash walls"3.exonerate by means of a perfunctory investigation or through biased presentation of data