The irrational fear of hope. Refers to Barack Obama. Usually refers not to policy differences with Barack Obama but to believing unproven Internet rumors (that he's a Muslim, that he wants to enslave white people, etc.).
Billy Bob always locked his doors when driving down to Tyrone's house despite the fact that the latter lived in a mansion, was better educated and made significantly more money. His doctor correctly diagnosed him with "Baracknophobia."