Alexophobia Share definition Flag Considered to be the deadliest phobia of them all, Alexophobists suffer from a fear of rust, particularly rusty earring backs. Man that guy on the fourth floor went crazy. Apparently he has Alexophobia. Poor guy... Alexophobia by themudfactor February 29, 2008 0 0 Get merch Get the Alexophobia mug. Buy Now — $32.95 See more merch