FBI agents are informally referred to as g-men (the " g" stands for government), and there's even a movie called G-Men.
FBI 特工被非正式地称为 g-men(“g” 代表政府),甚至还有一部电影叫做 G-Men。
英语百科
G Men
G Men is a 1935 Warner Bros. crime film starring James Cagney, Ann Dvorak, and Margaret Lindsay, and presenting Lloyd Nolan's film debut. According to Variety Magazine, the movie was one of the top-grossing films of 1935. The supporting cast features Robert Armstrong and Barton MacLane.