When someone is offended, they feel like a criticized child, although real children are typically criticized 500 times as often and severe; the deep sense of inadequacy and anger you feel about being disciplined, as you sometimes lie in bed playing on the phone and wasting your life, or when you are doing so.
When someone says something that may be considered policatically incorrect and you put on a front that you are offended so that outsdiers think you are a good person, when deep down you think it is funny as shit!
Greg: What is the difference between a black man and a pizza?
Oliver: Huh?
Greg: A pizza can feed a family of four! LOLOLOLOLOLOLO
One of the most annoying things to come across is someone who is offended on behalf of someone else, especially when that other person themselves isn't offended or even a victim. It's when someone is offended by something that isn't an attack on them.
American Liberals are offended on behalf of someone else when they try to make us replace "Indian" with "Native American", even when Indians themselves prefer the former and are not offended at all.
Someone who choses to be offended on behalf of someone else or a group. By assuming that they (the person or group) will be offended and responding in a virtues manner. By either silencing the other by calling them disrespectful or by blatantly denying factual information.
This is part of a tactic called Virtue Signalling often used by Libtards.
Usually in response to a statement or joke about the other person or group. In most cases the offended person is not related to the group he is offended for.