lid 
/ˈlɪd/ noun
plural lids /ˈlɪd/ noun [count] 1 : a cover on a box, can, jar, etc., that can be lifted or removed — see picture at kitchen 2 : eyelid
blow the lid off (chiefly US) or chiefly Brit lift the lid on
: to reveal the truth about (something)
▪ The investigation blew the lid off corruption in city hall.
▪ The investigation blew the lid off corruption in city hall.
flip your lid — see 1flip
keep a lid on 1 : to keep (something secret) from being known
▪ She tried to keep a lid on the news. 2 : to control (something) : to keep (something) from becoming worse
▪ The government has been unable to keep a lid on inflation.
▪ She tried to keep a lid on the news.
▪ The government has been unable to keep a lid on inflation.
put a lid on 1 : to stop (something) from growing or becoming worse
▪ These changes are intended to put a lid on rising medical costs. 2 informal : to stop doing or saying (something)
▪ He angrily told them to put a lid on their complaints. [=to stop complaining] ▪ I'm tired of listening to your complaints, so just put a lid on it! [=shut up] 3 or put the lid on : to cause the end or failure of (something)
▪ The government used the army to put a lid on [=stop] the rebellion. ▪ The new official vowed that he would put the lid on violence once and for all. ▪ (chiefly Brit) The rain has really put the lid on our holiday plans. [=has ruined our holiday plans]
▪ These changes are intended to put a lid on rising medical costs.
▪ He angrily told them to put a lid on their complaints. [=to stop complaining] ▪ I'm tired of listening to your complaints, so just put a lid on it! [=shut up]
▪ The government used the army to put a lid on [=stop] the rebellion. ▪ The new official vowed that he would put the lid on violence once and for all. ▪ (chiefly Brit) The rain has really put the lid on our holiday plans. [=has ruined our holiday plans]
