成语词典猫鼠同乳比喻官吏失职,包庇下属干坏事。也比喻上下狼狈为奸。同“猫鼠同眠”。拼音māo shǔ tóng rǔ解释比喻官吏失职,包庇下属干坏事。也比喻上下狼狈为奸。同“猫鼠同眠”。出处《新唐书·五行志一》:天宝元年十月,魏郡猫鼠同乳。同乳者,甚于同处。近义词猫鼠同处用法作宾语、定语;比喻上下狼狈为奸