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
Strong indicator that you are dealing with an idiot. Pathetic people often use "I am offended" to gain power over others in conversations; with the intent that the other person will cower to them in order to make them feel not offended. However, the correct response to "offended" people is to thank them for confirming that they are an idiot, and move on.