greasy?

(informal, disapproving) (of people or their behaviour人或行為) friendly in a way that does not seem sincere圓滑的；滑頭的；虛情假意的

pickpocket?

a person who steals money, etc. from other people’s pockets, especially in crowded places扒手；小偷

big deal

If you say that something is a big deal, you mean that it is important or significant in some way. 大事；要事

shyster?

(informal, especially North American English)

a dishonest person, especially a lawyer不擇手段的人；卑鄙小人；（尤指）奸詐的律師

power couple

a couple in which both partners are famous and successful at what they do強(qiáng)力對(duì)夫婦：夫妻雙方都在工作中出名并成功的夫妻

skunk

US, informal : a very bad or unpleasant person可惡的人；卑鄙的人