draw the curtain
1. To open a curtain in order to see or reveal what is behind it. Please draw the curtain so we can get some more sunlight in here.
2. To conceal something; to keep something a secret. The police have been accused of drawing a curtain on the officer's alleged involvement with the teenager's murder.
draw the curtain
1. Pull a curtain back or to one side to let in more light or to discover what is behind it. For example, The sun was so pleasant I drew the curtains. [c. 1500]
2. Block or conceal something. For example, Let's draw the curtain over this matter; no one needs to know more. [c. 1500] Also see draw a veil.