Rook or Gull is a term used to describe a type of SCAM. It involves a person or group of people who use deception to gain money or goods from another person or group. The scammer will often pretend to be someone else, such as a business partner, in order to gain access to the victim's finances. The term 'Rook or Gull' comes from the idea that the scammer is like a bird, taking advantage of the victim's naivety and gullibility. The scammer may also use false promises or threats to get what they want. In short, Rook or Gull is a type of SCAM that relies on deception and manipulation to gain money or goods from unsuspecting victims.