The phobia of siblings is Syngenesophobia. This phobia technically refers to the fear of relatives but is also classified as the fear of siblings.
Social Phobia is the phobia of embarrassment. It is the phobia in which a person is scared of being bullied.
A slightly more general term is Syngenesophobia, which is fear of relatives that can include siblings. Usually phobias are gender-specific and there would be a name (and there may be, but research did not turn it up) for brother fear and a different name for sister fear. Most references found indicated that siblings were included under Syngenesophobia.
The irrational fear is called a phobia; the experience or object that triggers a phobia could be called a phobic experience or object.
I looked it up and there is no phobia name for hail.
Chionophobia is the phobia of skiing/snow.
It's not real, but if you know what phobia means, you'll know what soup phobia means. Phobia: scared of something. So... soup phobia is when your scared if soup!
To have a phobia is to have a fear.
zelophobia
Stitch phobia
What is the phobia of geese?
What is the phobia of buttons?
Ball phobia