The term off-color humor (also known as irty jokes or blue humor) is an Americanism used to describe various jokes, prose, poems, black comedy and skits that deal with topics that are considered to be in poor taste or overly vulgar by the prevailing morals in a culture. Treating serious issues with deliberately inappropriate humor is called facetiousness. Most commonly labeled as "off-color" are acts concerned with sex, a particular ethnic group, or gender. Other off-color topics include: violence, particularly domestic abuse; excessive swearing or profanity; "toilet humor"; national superiority or inferiority, dead baby jokes, pedophilic content, and any other topics generally considered impolite or indecent. Generally, the point of off-color humor is to induce laughter by evoking a feeling of shock and surprise in the comedian's audience. In this way, "blue" humor is related to other forms of postmodern humor, such as the anti-joke.