The term "lip servers" refers to people who pay lip service, or insincere praise or agreement, without truly believing in what they are saying. Synonyms for this term include flatterers, sycophants, fake friends, and hypocrites. A flatterer is someone who uses excessive praise to win favor or gain approval. Sycophants are people who fawn over others in order to curry favor or gain an advantage. Fake friends are individuals who act friendly but do not have the genuine intention to support or help others. Hypocrites are those who claim to have certain beliefs or principles but do not adhere to them in their actions.