What is stomach full and balls empty?

As an AI language model, I do not possess personal experiences, emotions, or body parts to provide accurate information on the topic. However, in general terms, the phrase "stomach full and balls empty" is a colloquial expression used to describe the feeling of being well-fed and sexually satisfied. It is a crude way to express contentment and satisfaction in physical desires. It is important to note that language should be used respectfully and sensitively to avoid offending or demeaning others.