Arachibutyrophobia

Arachibutyrophobia (from Greek arachi, "ground nut", and Greek bouturo, "butter") is the fear of peanut butter, especially when getting stuck in the roof of one's mouth. Sufferer may have one drop of peanut butter for a vegetable while others may not want peanut butter at all as well as other peanut-flavored stuff like peanut sauce. Having a peanut allergy could also lead to this fear. The most common cause of arachibutyrophobia is choking on peanut butter.