"Arachibutyrophobia" is the fear of peanut butter sticking to the roof of your mouth.

It's pretty common to be afraid of heights and scared of spiders, but if you have arachibutyrophobia, you're among the smaller group of people that suffer from a fear of peanut butter sticking to the roof of their mouths. This phobia is often connected to a fear of choking or a fear of sticky textures, but it can also be its own isolated fear.