1) one of the triplets who came up from hell to do Azrael's bidding in "Dogma." When they were alive, they were baby-killers. That's why they were in hell.

2) anything having to do with hell.
This sentence doesn't have "stygian" in it.
by Dr. Heywood R. Floyd March 18, 2008
stygian is an elite stealth ninja
"he is stygian, nothing more needs to be said."
by jon backus August 7, 2007
You can use the word to describe any noun that you dislike.
Yo man, that coffee tased like complete stygian.
by your mom 5 December 16, 2010
A nickname chosen for by World of Warcraft player who thinks he is really cool, when in reality, he is a 20 year old virgin who habitually masturbates to hentai.
Your name is Stygian on Halo? You've never had sex before have you?
by rakkasan July 11, 2008