a small piece of interesting information, or a small dish of pleasant-tasting food

Our guide gave us some interesting tidbits about the history of the castle. 导游告诉了我们一些有关这个城堡历史的趣闻。

Grandma always has a few tidbits for the children if they're visiting at lunchtime. 孩子们在午饭时间去看望奶奶时，她总有一些美味小吃给他们吃。