Phono-semantic — one part hints at the meaning, another at the sound
Example phrases
那个家伙表面上吊儿郎当,关键时刻却比谁都可靠。Nà ge jiāhuo biǎomiàn shàng diào'erlángdāng, guānjiàn shíkè què bǐ shéi dōu kěkào.That fellow looks careless on the surface, but at critical moments he is more dependable than anyone.
这家伙又把我的雨伞拿走了。Zhè jiāhuo yòu bǎ wǒ de yǔsǎn názǒu le.That guy has taken my umbrella again.
你这个小家伙,怎么又把玩具弄得到处都是?Nǐ zhège xiǎo jiāhuo, zěnme yòu bǎ wánjù nòng de dàochù dōu shì?You little rascal, why have you scattered your toys everywhere again?