1788, short for Federalist; as colloquial for "official of the federal government," from 1916; especially, since 1930s, of FBI agents.
fed (adj.)
past participle adjective from feed (v.). Fed up "surfeited, disgusted, bored," is British slang first recorded 1900 (some early uses connect it to the Boer War), extended to U.S. by World War I; probably from earlier phrases like fed up to the back teeth. Earlier it was used of livestock, "fatten up by feeding." The notion probably is the same one in to have had enough "to have had too much."
实用例句
1. The radio had fed him a diet of pop songs.
他从广播里听到的都是千篇一律的流行歌曲。来自柯林斯例句
2. Occasionally a patient is so debilitated that he must be fed intravenously.
偶尔会有病人过于虚弱，必须通过静脉注射进食。来自柯林斯例句
3. We became increasingly fed up with his increasingly unfunny and unintelligent comments.
我们越来越反感他益发无趣又缺乏见地的言论。来自柯林斯例句
4. He was surrounded by people who fed him ghastly lies.
他周围的人都在给他灌输可怕的谎言。来自柯林斯例句
5. He was fed-up with the lies being spread about him.
