上下其手

    shàngxiàqíshǒu

    1. Idiomto raise and lower one's hand (idiom); to signal as conspiratorial hint; figuratively conspiring to defraud

    那两个商人上下其手,骗了许多消费者的钱。Nà liǎng gè shāngrén shàngxiàqíshǒu, piàn le xǔduō xiāofèizhě de qián.The two merchants conspired to defraud many consumers of their money.