simple past tense and past participle of feed.
fed up, impatient; disgusted; bored: They were fed up with the same old routine.
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Related Words for fed upannoyed
British Dictionary definitions for fed up
(usually postpositive) informal annoyed, discontented, or boredI'm fed up with your conduct
the past tense and past participle of feed
fed to death, fed to the teeth, fed up to the teeth, fed to the back teeth or fed up to the back teeth informal bored or annoyed
US slang an agent of the FBI
the Fed US informal the Federal Reserve Bank or Federal Reserve Board
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for fed up
past participle adjective from feed (v.). Fed up "surfeited, disgusted, bored," is British slang first recorded 1900, extended to U.S. by World War I; probably from earlier phrases like fed up to the back teeth.
1788, short for Federalist; as colloquial for "official of the federal government," from 1916, especially, after 1930s, of FBI agents.
Online Etymology Dictionary, © 2010 Douglas Harper