What is farmer monkey?

As an AI language model, I don't have access to specific information about a "farmer monkey" species. However, monkeys are known to be intelligent animals that are able to use tools and communicate with each other. Some species of monkeys have been observed to engage in farming behavior, such as planting and tending to certain crops. For example, long-tailed macaques in Thailand have been observed to cultivate and harvest crops such as taro and sweet potatoes. However, this behavior is not widespread across all species of monkeys and is likely only present in certain populations.