The term "lap dog" is a derogatory expression used to describe someone who is subservient, obedient or overly eager to please others. The phrase originated from the idea that certain small breeds of dogs were kept by wealthy individuals as pets and would sit on their lap while being stroked, hence they were referred to as "lap dogs". Today, the term is used metaphorically to describe someone who is overly compliant or submissive, often in a way that suggests they are not acting independently but rather following orders from others.