The the name is a subtle joke. The island is called "Araara", which is homophonic with the Japanese expression " ara ara," used to convey surprise or dismay. The island says that the shop was "Formerly Chuck's", implying that the two words beginning with "F" and "S" would have ended with "-uck", rhyming with "Chuck". So, when Chuck owned the shop, it would have been called "Chuck's Feeduck and Seeduck".
