[pointlessophobia]:
The fear of pocket lint getting stuck under your fingernails.

[circularpointlessophobia]:
The fear of catching pointlessophobia.

[oldpeopletechophobia]:
The fear of your computer transforming into a giant killer robot.

[overlyspecificphobia]:
The fear of 3:46pm.

[rubegoldbergphobia]:
The fear of lightning striking a tree, which falls on a colony of termites, who get mad and chew on a telephone pole, which falls on a car, which blows up and suffocates a pigeon, which crashes through a window, flinging shards of glass at a computer, causing it to upload a virus, which triggers a war with Japan, who fires a missile at the Bears football game, causing your neighbor to curse and swear, making his baby scream louder than a jet liner, thus damaging your eardrums.