dylanitis

1) The inability to curse

2) You repeat what others say when attempting to curse

3) This disorder is usually not noticeable. If someone with the disorder is asked “Say the F word”, they will repeat most of the time. These are the first symptoms. Others with this disorder may have to go to a few private therapy sessions in order for those effected to have the courage and energy to curse.

Example:
Person : Say the F word.
Infected Person : The F word

If this happens, it could be a sign of dylanitis, which is a very rare disorder.