Her parents sent her to boarding school to 'straighten' her 'out'.
He took time to 'straighten out' the papers on his desk.
You need to 'straighten out' your legs for this stretch.
(..) - The future. Whatever. It demonstrates precisely how time travel can be misused... ...and why the time machine must be destroyed... ...after we straighten all of this out. Right. So we go back to the future... ...and we stop Biff from stealing the time machine. We can't, because if we travel (..)1989 Back to the Future Part II