Comprehensive resource for understanding and mastering English idioms
The idiom "blow away" means to leave a person or thing completely overwhelmed or impressed by something, often something that is new or exciting. It can also mean to be carried away by an idea or to be swept off one's feet by someone's emotions.
The idiom "blow away" has been in use for centuries. Its earliest known use can be traced back to the 14th century, where it was used to describe a sudden gust of wind that could blow something or someone away. Over time, the meaning of the idiom evolved to include being completely impressed or swept off one's feet by something. The phrase "blow me down" is a variant of "blow away", and both expressions are used interchangeably in contemporary language.