豹头环眼的英文是「one 's head was shaped like a leopard 's , his eyes round」
bao tou huan yan
形容人的面目威严凶狠。
元·无名氏《博望烧屯》第二折:“我也不信,我豹头环眼,倒拿不住一目的夏侯惇。”