5 sentences

1. 别废话了，赶紧咔嚓掉吧。

   bié fèi​huà le, gǎn​jǐn kā​chā diào ba.

   Stop the nonsense and just finish it off already.

   Source: Dong Chinese Dictionary

2. 这是什么废话？

   zhè shì shén​me fèi​huà?

   What is this nonsense?

   Source: Tatoeba

3. 这篇报告写得很水，全是废话。

   zhè piān bào​gào xiě de hěn shuǐ, quán shì fèi​huà.

   This report is very subpar; it's all fluff.

   Source: Dong Chinese Dictionary

4. 别说废话了，我们还是谈正事吧。

   bié shuō fèi​huà le, wǒ​men hái​shi tán zhèng​shì ba.

   Stop talking nonsense; let's get down to business.

   Source: Dong Chinese Dictionary

5. “你会说中文吗？”“废话，我是在中国长大的。”

   “ nǐ huì shuō Zhōng​wén ma?”“ fèi​huà, wǒ shì zài Zhōng​guó zhǎng​dà de.”

   "Can you speak Chinese?" "Of course, I grew up in China."

   Source: Dong Chinese Dictionary