hippomostrosesquipedaliophobia Share definition Flag Fear of long words.... ironic. i have hippomostrosesquipedaliophobia! OH NOES!!! GASP!!! hippomostrosesquipedaliophobia by Pseudonym Psteve October 9, 2004 0 0 Get merch Get the hippomostrosesquipedaliophobia mug. Buy Now — $32.95 See more merch