1
general::
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]
American Heritage Idioms
2
general::
Phrase(s): *cheesed off
Sl. angry; disgusted. (*Typically: be ~; get ~; get someone ~.) • Clare was really cheesed off at the waiter. • The waiter was cheesed off at the cook.
McGrawhill's American Idioms And Phrasal Verbs