A secret handshake is a series of hand gestures that indicate loyalty to a club, clique, or subculture. The purpose of the secret handshake is to identify exclusive group members, and consequently to prevent inclusion of outsiders. Also, the element of secrecy provides the necessity of loyalty to the exclusive group. To reveal a secret handshake would be taboo and would cause the offending individual to be thought of as a traitor. A club is generally an association of people united by a common interest or goal, as opposed to any natural ties of kinship. ... A clique (pronounced ) is an informal and restricted social group formed by a number of people who share common interests - formal social groups are referred to as societies or organizations. ... As understood in sociology, anthropology and cultural studies, a subculture is a set of people with a distinct set of behavior and beliefs that differentiate them from a larger culture of which they are a part. ... A taboo is a strong social prohibition (or ban) relating to any area of human activity or social custom declared as sacred and forbidden; breaking of the taboo is usually considered objectionable or abhorrent by society. ... In law, treason is the crime of disloyalty to ones nation. ...

Home slide

The Home slide is a corrupt version of a gang handshake that is often seen in movies. A gang is a group of individuals who share a common identity and, in current usage, engage in illegal activities. ...

It begins with a normal hand shake. The pair move their hands into a 90 degree angle to lock thumbs. They then slide their hands away from each other to form a fist. One person taps a closed fist on top of the other's closed fist and this is reciprocated. Finally, they punch their two fists straight on.

Other elaborations exist including the horizontal clapping of each other's hands with and putting ones hand around the back of another and grasping them in a hug like fashion.