It's possible you may have misheard or misremembered the term.
Perhaps you were thinking of a similar-sounding phobia, such as:
* Stuporophobia: Fear of stupor or a state of unconsciousness.
* Stuttering: This is not a phobia but a speech disorder.
If you're curious about phobias, it's always best to consult reliable sources like the American Psychological Association or the Mayo Clinic.