”The Growing Pains of Adrian Mole Adrian Mole 02”からの引用です。
“My father is getting fed up with his job as a canal bank renovation supervisor. He says that no sooner do Boz, Baz, Maz, Daz and Gaz, his gang, clear a section of canal than some slob comes along in the night and tips a month's household rubbish on the virgin bank.”
"get fed up with one's job" = 「仕事にうんざりする」
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."