Definition

The sacred, unwritten (but actually written by Barney Stinson) set of rules governing all bro interactions, from "bros before hoes" to never dating a bro's ex. Violating the Bro Code is grounds for immediate exile from the brotherhood and eternal shame.

Example Usage

Mike broke the Bro Code by asking out Jake's sister without permission—now he's persona non grata at game nights.

Source: Urban Dictionary (https://www.urbandictionary.com/define.php?term=Bro%20Code&defid=18081223)