From Ancient Greek ἰθύφαλλος (ithúphallos) (from ἰθύς (ithús, “straight”), a variant of εὐθύς (euthús), + φαλλός (phallós, “penis”)) + English phobia.
ithyphallophobia (uncountable)
- The fear of having or seeing an erect penis.
2002 September 13, maf1029 [username], “Re: Homosexuals have phobias”, in alt.politics.homosexuality[1] (Usenet):So, do you use your violence fantasies to mask your medorthophobia, your ithyphallophobia, or your medomalacuphobia?
2013, Tom Cutler, Slap and Tickle: The Unusual History of Sex and the People Who Have it[2], Constable, published 2012, →ISBN:(Nocturnal erections are probably good if you suffer from 'Ithyphallophobia', the morbid fear of seeing, having or thinking about an erect penis.)
2013, Eric Jerome Dickey, Decadence[3], Dutton, →ISBN:“Mommy, I know that you don't suffer from ithyphallophobia, so you can stop pretending that you do.”