Make sure the post is 'square' to the floor. [=make sure that there is a right angle where the post and the floor meet]
I'll go on the trip if I can 'square it with' my parents. [=if my parents will agree to let me go]
Here's the rest of the money. Now we're 'square'. [=now we don't owe each other anything]
(..) - True inspiration's impossible to fake. - That's not true. - Can you do it? - Are you offering me a choice? Because I can find my own way to square things with Cobol. Then you do have a choice. Then I choose to leave, sir. Tell the crew where you want to go. Hey, Mr. Cobb. (..)2010 Inception