To move around in water making it splash, usually in a playful manner.

पानी में खेलते हुए इधर-उधर चलना।

English Usage: The kids splash about in the pool on hot summer days.

Hindi Usage: बच्चे गर्मी के दिनों में तालाब में इधर-उधर खेलते हैं।

to make a noise by splashing, often in a playful manner

छपकना

English Usage: The kids were splashings around in the puddle after the rain.

Hindi Usage: बारिश के बाद बच्चे पानी में छपक रहे थे।