What is smarmy?

Smarmy is an adjective used to describe someone who is excessively flattering or insincere in their speech or behavior. Such a person may be characterized by their unctuous mannerisms, smug self-assuredness, and their tendency to engage in manipulative or deceitful tactics. The term often connotes an attitude of pretentiousness, arrogance, and condescension, and is typically used in a negative manner to describe someone who is perceived as dishonest or disingenuous. Smarmy behavior is often associated with people in positions of power, such as politicians or business executives, and is seen as a way to gain advantage or manipulate others for personal gain.