sweep (something) under the rug, to

sweep under the rug

Hide something, as in Their attempts to sweep the scandal under the rug were not very successful. This idiom alludes to sweeping dust under the rug, so it won't be seen. [Mid-1900s]
See also: rug, sweep
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

sweep under the rug

To avoid discussing or dealing with (something negative or troubling).
See also: rug, sweep
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

sweep (something) under the rug, to

To conceal something. This allusion to hiding household dust or debris by sweeping it under a rug or carpet was used figuratively only from the mid-twentieth century. It appeared in the Boston Globe in 1979: “Attempts to sweep the Chappaquiddick scandal under the rug have not succeeded.”
See also: sweep
The Dictionary of Clichés by Christine Ammer Copyright © 2013 by Christine Ammer
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