keep under wraps
keep something under wraps
Fig. to keep something concealed (until some future time). We kept the plan under wraps until after the election. The automobile company kept the new model under wraps until most of the old models had been sold.
keep (something) under wraps
to hide something The studio is keeping details of the new movie under wraps until its release in May. The painting was bought by someone who wants to keep his name under wraps.Related vocabulary: draw a veil over something