@colon_three I can't imagine a better way of trolling a troll than responding in an outrageously thick Scottish accent, maybe tossing in a few made-up words here and there just to confuse them.

I used to reply to trolls with biblical verses that were not actually in the Bible, vaguely Victorian-sounding outrage (threatening to summon a constable, etc), and insults in Esperanto. Honestly, whatever it was didn't matter—just the fact that I was clearly not taking them seriously drove them nuts.