Phono-semantic — one part hints at the meaning, another at the sound
Example phrases
我叔叔是个一毛不拔的人,从来不请客。Wǒ shūshu shì gè yìmáobùbá de rén, cónglái bù qǐngkè.My uncle is a real penny-pincher; he never treats anyone.
他对朋友一毛不拔,大家都不爱跟他来往。Tā duì péngyou yìmáobùbá, dàjiā dōu bú ài gēn tā láiwǎng.He is stingy with his friends, so nobody likes to keep in touch with him.
这家公司对员工福利一毛不拔,广告却舍得花钱。Zhè jiā gōngsī duì yuángōng fúlì yìmáobùbá, guǎnggào què shěde huā qián.This company won't spend a penny on employee benefits, yet it is willing to pay for advertising.