The word "licker" is often used derogatorily to describe someone who is excessively flattering or obsequious. However, there are several synonyms that can be used to describe this behavior in a more polite or neutral manner. For example, words such as "sycophant," "brownnoser," "toady," "flatterer," and "bootlicker" all connote a similar kind of insincere flattery or servility. Alternately, one might use words such as "pleaser," "accommodator," or "conformist" to describe someone who is excessively agreeable or eager to please. Ultimately, the specific connotations associated with each of these words may vary depending on the context in which they are used.