whitewash
1. white.wash \'hwi-t-.wo.sh, 'wi-t-, -.wa:sh\ vt 1: to whiten with whitewash 2a: to gloss over or cover up (as vices or crimes) 2b: to exonerate by means of a perfunctory investigation or through biased presentation of data 3: to hold (an opponent) scoreless 2. whitewash n 1: a liquid composition for whitening a surface : as 1a: a preparation for whitening the skin 1b: a composition (as of lime and water or whiting, size, and water) for wh itening structural surfaces 2a: an act or instance of glossing over or of exonerating 2b: a defeat in a contest in which the loser fails to score
Webster's English Dictionary