冒失鬼

zhè ge mào shi guǐ chà diǎn bǎ wǒ zhuàng dǎo

这个冒失鬼差点把我撞倒。

This impetuous chap almost knocked me down.

zhēn shi qīng jǔ wàng dòng de mào shi guǐ

真是轻举妄动的冒失鬼！

What a reckless daredevil!

zhè jiāng huì ràng tā bù zài xiàng gè mào shi guǐ yī yàng dào chù héng chōng zhí zhuàng le

这将会让他不再像个冒失鬼一样到处横冲直撞了。

It'll stop him rampaging all over the place like a bull in a china shop.