If something is done splashily, it is done in a way that makes a lot of splashing sounds or movements, often in a showy or attention-grabbing manner.
Doing something splashily can make people think of fun, excitement, or showing off.
Examples:
She jumped into the pool splashily.
The elephant walked splashily through the river.
The kids played splashily in the puddles.
He ate his cereal splashily, and milk went everywhere!
The clown danced splashily in the circus ring, making everyone laugh.
The dog shook itself splashily after swimming in the lake.