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]
(..) with aircraft-grade aluminum? Right. Then the entire thing is one heat sink. You and Sheldon go to the junkyard and pick up square meters of scrap aluminum? Raj and I will get the oxyacetylene torch. - Meet back here in an hour? - Done. Okay, this place does look pretty good. (..)2007 TvShow: The Big Bang Theory Title: The Big Bran Hypothesis Season: 1 Episode 2