The soldiers were 'pinned' down by enemy fire. [=the soldiers were unable to move because they were being shot at by the enemy]
She's always 'dropping names'. [=saying the names of famous people she knows to try to impress others]
Reporters tried to 'pin' him 'down' on the specific changes he wants to make to the tax laws.
(..) Appreciate what you're trying to do, son. Did the same job myself, and proudly. I have no quarrel with you, but I do have a deadline. So put the gun down... Pull the pin. ...because you're not gonna shoot the president. - You're right. - Where does that leave us, boys? That leaves us with this. (..)2013 White House Down