Meaning of "gambo" in the English dictionary

"Gambo" is the name given to a carcass of an unidentified large marine animal that was reportedly washed up on Bungalow Beach in The Gambia. The carcass of the Gambo was reported to have been discovered by 15-year-old Owen Burnham and his family on the morning of June 12, 1983. Owen, a wildlife enthusiast, decided to take measurements and then make sketches since he did not have a camera at the time. According to later testimony, he did not think to take a sample until after he realized he could not identify it in any books. According to Owen, local villagers called it a "dolphin", but that was likely only because of the superficial similarity. The carcass was later decapitated by local villagers, and the head was sold to a tourist. Its body was then buried and attempts to relocate it have failed. After Owen mentioned the carcass in a newspaper article three years after the event, it caught the attention of cryptozoologist Karl Shuker who requested more information on the carcass. According to Owen, the carcass showed little or no signs of decomposition and measured around 15 feet in length. The coloration was brown on top and white below, and the skin itself was smooth.