An irrational fear of Guinness alcoholic beverages, often accompanied by a response of denial, confusion and/or anger when exposed to sight, smell, taste or mere mention of a branded beer or other product. A Guinnephobe is a person who suffers from Guinnephobic traits or tendencies.
You can't even mention Guinness around that guy without him going off on you... He must suffer from Guinnephobia!
by FazFX March 18, 2019
Get the Guinnephobiamug.