witzelsucht – from the German witzeln, meaning to joke or wisecrack, and sucht meaning addiction or yearning, is a set of rare neurological symptoms characterized by the patient’s uncontrollable tendency to make puns, tell inappropriate jokes and pointless or irrelevant stories at inconvenient moments. The patient nevertheless finds these utterances intensely amusing. It is associated with small lesions of the orbitofrontal cortex.
Rachel doesn’t think she has witzelsucht even though she often tells stories that have no point and then laughs at them like they are the most hilarious thing in the world. She does suspect that another person on her team has the condition though.