To engage in malpractice for personal gain; to bend the law to help one's friends or relatives.
徇曲从；舞舞弄，耍花样。为了私人关系而用欺骗的方法做违法乱纪的事。
明·施耐庵《水浒全传》第八十三回谁想这伙官员，贪滥无厌，徇私作弊，克减酒肉。”
The official was fired for 徇私舞弊 in awarding contracts to his brother's company.
Learn the next connected idiom: 徇私舞弊 (xùn sī wǔ bì) → 弊绝风清 (bì jué fēng qīng)
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