Smarm is a word that refers to insincere flattery, or overly flattering behavior. There are many different synonyms for this word that can be used in different situations, depending on the intended meaning and context. Some good synonyms for "smarm" include sycophancy, obsequiousness, toadying, groveling, fawning, unctuousness, and ingratiating behavior. Other similar words include flattery, brown-nosing, ass-kissing, bootlicking, and pandering. These synonyms can be used in a variety of contexts, from business and politics to personal relationships and social situations. They all describe behavior that is designed to gain favor or advantage through false or exaggerated praise, and can be used to describe both individuals and groups who engage in this behavior.