Witzelsucht is a set of neurological symptoms characterized by the need to tell puns and inappropriate jokes in any situation. Even in the most socially inappropriate setting, people with Witzelsucht cannot help but make a joke or a pun. The more inappropriate the situation, the more someone with Witzelsucht feels the desire to tell a joke. The opposite of Witzelsucht is HDD. HDD, the short form for Humor Deficiency Disorder, is a condition where a person never feels the need to make jokes, no matter how funny a situation may be.