The term 'Waikiki Wing-Ding' is a combination of two words, 'Waikiki' and 'Wing-Ding'. Waikiki is a beachfront neighborhood in Honolulu, Hawaii, known for its white sand beaches and vibrant nightlife. A wing-ding is an informal gathering or party. Therefore, the term 'Waikiki Wing-Ding' refers to a festive gathering or party held in Waikiki. The crossword solution for this term is 'LUAU', which is a traditional Hawaiian feast featuring a variety of dishes, including roasted pig, poi, and lomi salmon.