rubber-stamp (something)

if someone rubber-stamps a decision or a plan, they give it official approval, often without thinking about it enough.

School governors will not simply rubber-stamp what teachers have already decided.

The court was asked to rubber-stamp the Department's decision to free the men.

• give a dose of own medicine
• give a dose of their own medicine
• give a fair crack of the whip
• give a fig
• give a foot in the door
• give a free hand
• give a free reign
• give a free rein
• give a hand
• give a hard time
• give a head start
• give a heads up
• give a hoot
• give a hostage to fortune
• give a leg up
• give a lick and a promise
• give all
• give [a lot of/some etc.] stick
• give a lot of stick
• give a miss
• give a monkey's
• give-and-take
• give and take
• give an earful
• give an even break