wet play noun3 •(UK) Structured play activities for young schoolchildren during inclement weather.You should stay in since it's wet play. •A natural gas formation containing wet gas, meaning it has sizable amounts of liquid alkanes.In the Delaware there is lots of water, especially brackish and produced. It’s a wet play, but there is very little water infrastructure. — 2018 •Sexual activity involving liquids; either urolagnia or sploshing (wet and messy fetishism). formswet plays