Snowball battle in the park.

Meaning: This means that people are having a playful fight by throwing snowballs at each other in a park. It's like saying, People are throwing snowballs at each other in the park.

Choice of Words: Snowball is a ball made of snow that is usually used for throwing. Battle is a playful activity where people throw objects at each other, but it can also be used to describe a more serious fight. Park is a public area with green space where people can relax and play. When you put them together, "Snowball battle in the park" means that people are throwing snowballs at each other in a park.