pea-likker juice
n.— «An extravagant metaphor applied to one who has demonstrated unusual ability or ingenuity. “Buck shore is the pealikker juice when it comes to standing in with the gals.” Confined to the lower South and derived from the use of cow-peas as a staple article of diet.» —by Harry Harrison Kroll in George Peabody College for Teachers A Comparative Study of Upper and Lower Southern Folk Speech (Martin, Tennesee) Aug., 1925. (source: Double-Tongued Dictionary)