1. Today is the day I’m supposed to present my report to the board of directors, but I’m not at all prepared. When I stand up in front of them, I’m going to have to wing it. 1. I know I’m in trouble for misbehaving in class last week, but I want to do better. I want to wipe the slate clean.
2. We don’t know how we’re going to handle the situation. It’s hard to plan for something like this in advance, so we’ll just wing it and hope for the best. 2. When Kyle was rude to his mother, she sent him to his room, but his punishment was over by dinner time. The slate had been wiped clean

Similar: by the seat of (one’s) pants , play it by ear. Dating from the late 19th century, wing it was originally a theatrical term. Impromptu (unprepared) actors would quickly look over their speaking lines before going onto stage and then someone in the wings (behind the stage curtains) would prompt the actors on their exact lines. to set a situation right or erase something badA slate is a small chalkboard.