Gustatory hallucination is the sensation of tasting something that isn’t really there, typically an unpleasant flavor. Can be a symptom of certain types of epilepsy, or schizophrenia.
Example: The patient complains that his food tastes rotten, although the flavor seems normal to everyone else at the table.
Grinnell, R. (2011). Gustatory Hallucination. Psych Central. Retrieved on May 3, 2015, from http://psychcentral.com/encyclopedia/2008/gustatory-hallucination/