snowball in Finnish

A ball of snow, usually one made in the hand and thrown for amusement in a snowball fight; also a larger ball of snow made by rolling a snowball around in snow that sticks to it and increases its diameter.

(intransitive) To rapidly grow out of proportion or control, from an initially smaller state.

(intransitive) To play at throwing snowballs.

(intransitive) To play at throwing snowballs.