strolling supper
n.— «I “get” the fact that a “strolling supper” is another term for “buffet,” but I have a question: what happens if the “strolling” supper gets up and leaves?» —“Marian Ilitch will ‘stroll’ into the Michigan Sports Hall of Fame next Februrary” by George James Malik Mlive.com: Snapshots (Michigan) Oct. 22, 2008. (source: Double-Tongued Dictionary)