# set up someone's birse

> English word · Verb

## Definitions
1. To make someone angry.

## Etymology
From the habit of animals bristling up when enraged.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/set-up-someone-s-birse