a small, round ball of soft material used as decoration

a small ball of thread that develops on clothing or furniture covered in cloth

If a piece of clothing or material bobbles, it develops small balls of threads on its surface.

I've only worn this jumper twice, and it's already begun to bobble. 这件套衫我只穿了两次，却已经开始起毛球了。

to drop or almost drop a ball that you are trying to catch or stop

The right fielder bobbled an easy grounder. 右外场员漏了一个很容易的地滚球。