limpkinPronunciation: /ˈlɪm(p)kɪn/Definition of limpkin noun a wading marshbird related to the rails, with long legs and a long bill, found in the south-eastern US and tropical America. Aramus guarauna, the only member of the family Aramidae Origin: late 19th century: from limp1 (with reference to the bird's limping gait) + -kinlimpkin in other Oxford dictionaries Definition of limpkin in the US English dictionary