- fed (n.)
[fed 词源字典]
- 1788, short for Federalist; as colloquial for "official of the federal government," from 1916; especially, since 1930s, of FBI agents.[fed etymology, fed origin, 英语词源]
- G-man (n.)
- "FBI agent," 1930, shortening of government man; used earlier in an Irish context (1917), but the abbreviation is perhaps the same one.