Tā / suī / rán / zuǐ / shàng / mà / wǒ / shì / chǔn / cái / qí / shí / shì / zài / hé / wǒ / kāi / wán / xiào

他虽然嘴上骂我是蠢材，其实是在和我开玩笑。

Although he called me an idiot, he was actually joking with me.