Home › Words › W › wankapinwankapinwankapin means nelumbo lutea, the American lotus, the water chinkapin.Among words judged in Lexicurio's Arena, wankapin ranks #16,730 of 42,747 for Qualifying.EtymologyProbably related to yoncopin.nounNelumbo lutea, the American lotus, the water chinkapin.Definitions & examples from Wiktionary (CC BY-SA 3.0).