Phono-semantic — one part hints at the meaning, another at the sound
Example phrases
会议纪要写得乱七八糟,连决议和讨论意见都分不清。Huìyì jìyào xiě de luànqībāzāo, lián juéyì hé tǎolùn yìjiàn dōu fēn bù qīng.The meeting minutes were written in a complete mess, to the point that resolutions and discussion points could not be distinguished.
孩子的房间被玩具弄得乱七八糟。Háizi de fángjiān bèi wánjù nòng de luànqībāzāo.The child's room has been turned into a total mess by toys.
我这几天心里乱七八糟的,什么也不想做。Wǒ zhè jǐ tiān xīn lǐ luànqībāzāo de, shénme yě bù xiǎng zuò.My head has been in a total muddle these past few days and I don't feel like doing anything.