"Messy play" refers to an activity or playtime where children or individuals get intentionally messy, such as playing with paints, mud, or other substances. Full definition
They love it when I set up a fun sensory bin, sensory art project or messy play activity. (funlearningforkids.com)
Lots of this learning is messy play with sand, dirt and water. (cyh.com)
S is a soon - to - be four year old who is an amazing artist with a deep love of messy play, dinosaurs, robots, bugs, and her baby brother. (funathomewithkids.com)