Barbecue sheep testicles. Xuzhou barbecue meatball head is a dish in Xuzhou barbecue. The meatball head is sheep testicles, and the Xuzhou barbecue meatball head is roasted sheep testicles. Xuzhou, referred to as "Xu" for short, was called Pengcheng in ancient times. It is a prefecture-level city and sub-central city under the jurisdiction of Jiangsu Province, and a national historical and cultural city approved by the State Council.