The term Okefenokee Possum is a combination of two words, Okefenokee and Possum. Okefenokee is a swamp located in the southeastern United States, while Possum is a small marsupial native to the region. The crossword solution for this term is POGO, which is a reference to the comic strip character created by cartoonist Walt Kelly in the 1940s. Pogo is an anthropomorphic possum who lives in the Okefenokee Swamp and is known for his philosophical musings and witty dialogue.