to spend time in a relaxed way because you have nothing to do or you are waiting for something else to happen

We whiled away the afternoon playing cards in front of the fire. 我们下午坐在炉火边打牌来消磨时间。

That's the spot where Sara and I used to while away the hours between lectures. 我和萨拉课间就在那个地方消磨时间。