Blunder away is a phrase that expresses the act of making an error or mistake, usually caused by carelessness. There are several synonyms to describe this act. One such synonym is "botch," which is when someone messes up a task or situation. Another term is "flub," which is when someone makes a mistake that is embarrassing. "Fumble" is a synonym that refers to clumsiness or bungling, whereas "blow" is a term that means to ruin something or make a mistake. Finally, "misplay" is a synonym for blunder away, which is to make a mistake while playing a game or sport. All these synonyms convey the essence of the phrase "blunder away" and can be used interchangeably.