A "fireable offense" refers to an action or behavior by an employee that is considered serious enough to warrant termination or being fired from their job. Full definition
So to review: in 2014 a high - ranking Uber executive commits a clearly fireable offense, but he is not only not fired, he is lauded, while the company as a whole is further validated by investors. (stratechery.com)
Letting Tice go would be an instant fireable offense by Del Rio. (sbnation.com)
This is why hiring Downing was the most fireable offense Jack committed. (sbnation.com)