One of the gang is a term used to describe someone who is part of a group or organization. A HOOD is a person who is part of a criminal gang, a PAL is a close friend, a PEER is someone of the same age or status, a MEMBER is someone who belongs to a group, a CHUM is a good friend, and an insider is someone who has special knowledge or access to a group. All of these terms can be used to describe someone who is part of a group or organization.