Top Definition
Comes from the Greek Mythology.. like the Greek Muse(s) 'The Sirens' Very beautiful, seductive and has a lovely voice. Can be friendly but can also be very vicious. As said in the greek mythology, used to lure shipmen from their charming voices and make the shipmen wreck in the rocks of the sea.
Wow, Cyren really fits the description that the Book of Poseidon gives of the actual muses, 'The Siren's'.
by lovepiinkxo February 27, 2010
2 more definitions
A cyren is any girl who appears very attractive on her online social networking page (e.g. Facebook, Myspace, etc.), but in reality is mediocre, at best. The word is a hybrid form of the words "cyber" and "siren."
My friend Brandon thought he had discovered an online babe. Turns out, she was a total cyren.

Friend 1: Dude, this babe just added me on facebook. I think she wants a piece.
Friend 2: Oh no, stay away from that chick. She's friends with my ex, and is the omega-cyren! TRUST ME.
by notmadjustdisappointed January 25, 2010
A psychotic person who must have been abused as a child and is on the verge of turning into a Serial Killer.
(22:48.58) (@Cyren): im perfectly relaxed
(22:49.02) (@Cyren): i just want to kill people
(22:49.23) (@Zey): lol
(22:49.26) (@Zey): thats bad :)
(22:49.38) (@Cyren): its art

Your name suits you!
by Zey November 28, 2003

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