keep/put a/the lid on something

put the lid on

Also, keep the lid on. Suppress, as in I don't know how but we'll have to put the lid on that rumor about her, or Let's keep the lid on our suspicions. The word lid here is used in the sense of "a cover for a container." [Early 1900s]
See also: lid, on, put

keep the lid on something

or

put the lid on something

COMMON If you keep the lid on or put the lid on a situation or problem, you keep it hidden or control it to stop it becoming worse. Murray was desperately trying to keep the lid on a potential scandal. We want the public to assist us in putting a lid on crime.
See also: keep, lid, on, something

keep a (or the) lid on

1 keep an emotion or process from going out of control. 2 keep something secret. informal
See also: keep, lid, on

put the (or a) lid on

put a stop to. informal
1996 Observer Nothing's final. I haven't put the lid on anything.
See also: lid, on, put

put the (tin) lid on

be the culmination of a series of acts or events that makes things unbearable. British informal
1999 Chris Dolan Ascension Day Mum found she was pregnant a month before the wedding, then Dad put the tin lid on it by getting himself laid off.
See also: lid, on, put

keep/put a/the ˈlid on something

try to make sure that people do not do something or find out about something: The government wants to keep the lid on discussion of tax reforms at the moment.
See also: keep, lid, on, put, something

put the (tin) ˈlid on something

(British English, informal) bring to an end an activity, your hopes or plans: I’ve got a place at an American university but I can’t afford to go, so that’s put the lid on that.It rained and rained, which put the tin lid on our plans for a picnic in the park.
See also: lid, on, put, something