sweep something under the rug
sweep (something) under the rug
To ignore, deny, or conceal from public view or knowledge something that is embarrassing, unappealing, or damaging to one's reputation. The senator has been accused of trying to sweep his former drug use under the rug. You need to stop sweeping your problems under the rug. Nothing will get resolved like that!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
sweep something under the rugmainly AMERICAN
If you sweep something under the rug, you try to hide it and forget about it because it makes you feel embarrassed or ashamed. Executives swept the theft under the rug, hoping to avoid being accused of mismanagement by directors and shareholders. Some of the most appalling crimes went unpunished, swept under the rug in order to placate the military. Note: Other verbs such as brush and push are sometimes used instead of sweep. You can't just brush this one under the rug. Note: The usual British expression is sweep something under the carpet.
Collins COBUILD Idioms Dictionary, 3rd ed. © HarperCollins Publishers 2012