snowball

He threw a snowball at his friend.

彼は友達に雪玉を投げた。

The small issue quickly snowballed into a major problem.

小さな問題が急速に大きな問題に雪だるま式に増えた。

He snowballed his friend during the game.

彼はゲーム中に友達に雪玉を投げた。