2 sentences for 真格 (zhēn​gé)

1. 大家都以为他在开玩笑，其实他是动真格的。

   dà​jiā dōu yǐ​wéi tā zài kāi wán​xiào, qí​shí tā shì dòng zhēn​gé de.

   Everyone thought he was joking, but he's actually being serious.

   Source: Dong Chinese Dictionary

2. 他手里拿的可是真格的宝贝，千万别弄坏了。

   tā shǒu lǐ ná de kě​shì zhēn​gé de bǎo​bèi, qiān​wàn bié nòng​huài le.

   What he's holding is a real treasure; don't break it.

   Source: Dong Chinese Dictionary