Aesop's smart-alecky loser is a phrase that refers to someone who is overly confident in their intelligence but constantly fails to deliver. There are several synonyms that capture the essence of this type of person, such as a know-it-all, a conceited underachiever, a pompous failure, an arrogant flop, and a self-important loser. These types of individuals often lack the self-awareness to realize their limitations and may come across as irritating or insufferable to others. It's important to keep in mind that intelligence alone does not guarantee success, and humility and hard work are essential components of any accomplishment.
