Is "raise my arms" a synonym of "wind up"?
Native speaker’s answer
Rebecca
No, these are two completely different expressions. When Charlie Brown says he will "wind up," he is using an expression related to baseball. It refers to the motion made by a pitcher when throwing the baseball to homeplate. In addition, "wind up" can also be used to mean the action of irritating or teasing someone. Ex: The game is almost over. Watch the pitcher's windup! Ex: Alex, stop winding up your sister! She's crying.