Turns out if you trace the etymology of sycophant, you end up with "fig-shower" (sykon = fig in Greek), where "showing the fig" meant something along the lines of "flipping the bird" today.

http://www.etymonline.com/index.php?search=sycophant

The opposing hand gesture to bird-flipping might be peace-sign-showing. So how about "pacophantic".

(And FWIW, I thought the sarcasm in your question was immediately clear, not sure how other people misunderstood it).