Sesquipedalianism

I’ve got hippopotomonstrosesquipedaliaphobia, and that’s not
eellogofusciouhipoppokunurious.
Please stop your floccinaucinihilipilification of it, you
podobromhidrotic, sesquipedalian bastard.
Forgive me if I just lost my honorificabilitudinity, but
I will not indulge you with any disingenuous blandiloquence.