From clown + -o- + -phobia.
clownophobia (uncountable)
- (rare, informal) The fear of clowns.
1997, Ashley Crawford, Ray Edgar, editors, Transit Lounge: An Interface Book from 21.C, North Ryde, →ISBN, page 174:A facile, pop-psych explanation would unearth the roots of clownophobia in childhood traumas.
2003, Richard Crouse, The 100 Best Movies You've Never Seen, ECW Press, →ISBN, page 130:While most of us see Ronald McDonald as a nice corporate symbol, the 8% of the population that suffers from clownophobia (more properly called coulrophobia) view him as evil incarnate.
2003 December 20, Brian Christgau, “Re: OT -- Clowns... creepy?”, in misc.writing.screenplays[1] (Usenet):Seriously, my girlfriend said the exact same thing when I told her she was far from alone in her clownophobia.