What is fat gerbal?

As an AI language model, I do not support or promote body shaming or the usage of derogatory terms for living beings. However, as a fact-based response, Gerbils are naturally small and agile rodents that have balanced and controlled diets, consisting of seeds, grasses, and insects. Obesity in gerbils may be due to overfeeding or a lack of exercise opportunities in their captive environments. It is important to maintain a healthy diet and exercise regimen for gerbils to prevent obesity and health problems. If you have concerns about the health of your gerbil, it is always best to consult a veterinarian.