Superlative form of splashy: most splashy.(adjective)
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Use "splashiest" in a sentence
"Quarterback Donovan McNabb entered the 2010 season as the Redskins' splashiest offseason addition, a six-time Pro Bowler who was to offer Washington stability at what had, for years, been a tenuous spot."
"Jayson Werth, Nationals - Arguably the splashiest free agent signing in the major leagues this winter, all eyes will be on whether Werth is capable of playing up to his $126 million contract."
"Actor Jeremy Jordan is enjoying one of the splashiest moments on Broadway for a newcomer in recent memory."