蝇营狗苟

Explanation: Analogy to chase fame and fortune, unscrupulous, fly like flies, like a dog does not know shame. 　　Usage: Joint type; as predicate, object, attribute; containing derogatory 　　Source: Han Yu Tang "to send the poor text" Yingyinggougou, drive to return. " Thesaurus:  be more worthiless than pigs, ingratiate oneself with someone to gain one's ends