Sweep it under the rug
Meaning
Ignore a problem and pretend it is gone.
Usage
Used when describing denial or cover-ups.
Origin & History
Origins and dates here are approximate summaries. Many idioms have disputed or unknown origins, and not every date has been checked against a historical dictionary, so treat specific dates and stories as a starting point rather than a citation.
Literal meaning of hiding dirt beneath a rug.
Popularized in domestic contexts in the mid-20th century.