get someone's back up

== English == === Pronunciation === === Verb === get someone's back up (third-person singular simple present gets someone's back up, present participle getting someone's back up, simple past got someone's back up, past participle (UK) got someone's back up or (US) gotten someone's back up) (idiomatic) To annoy or anger someone. ==== Synonyms ==== See Thesaurus:annoy and Thesaurus:enrage ==== Related terms ==== have one's back up