adjective Chiefly British Slang.
disgusted; fed up (usually followed by off).
Origin of cheesed
First recorded in 1940–45; origin obscure
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
(usually postpositive) British slang bored, disgusted, or angry
Word Origin for cheesed off
C20: from cheese ²
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
Online Etymology Dictionary, © 2010 Douglas Harper
Angry, fed up, annoyed, as in I'm cheesed off about watering their plants twice a week. This term was originally military slang and sometimes put simply as cheesed. [Slang; mid-1900s]
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.