The term 'nightclub routine' is often used to describe the job of an actor, which is someone who performs in a play, movie, television show, or other form of entertainment. An actor's job is to bring a script to life by memorizing lines, interpreting characters, and engaging with other actors on stage. A nightclub routine may involve singing, dancing, and other forms of performance art. It is a popular form of entertainment that can be found in many nightclubs around the world.