under wraps

Idioms and Phrases

Concealed or secret, as in The design for the new plant is under wraps . This idiom frequently is put as keep under wraps , meaning “keep secret,” as in Let's keep this theory under wraps until we've tested it sufficiently . It alludes to covering something completely by wrapping it up. [1930s]

Example Sentences

House Speaker Mike Johnson hopes to keep a report on Donald Trump's prospective attorney general under wraps.

From Salon

In previous years, piecemeal confirmation of the line-up has started in November, but the full rundown is typically kept under wraps until March.

From BBC

The producing duo, who have kept much of their private life under wraps, married in December 2016.

From Los Angeles Times

These are among the pregnancy symptoms often kept under wraps until they’re experienced, met with the refrain, “Why did no one tell me about this?”

From Los Angeles Times

But in her ruling, Judge Chutkan argued that if she had kept the files under wraps, that could itself have been construed as election interference.

From BBC