Top definition
Sexy Girl, Nice Ass, Pretty face, Beautiful Hair, Tight as Fuck.

Usually Flirty, Affectionate, and lots of fun.
Girl 1: Have you heard about that girl, who plays all the guys?

Girl 2: Ugh! Must Be Cyn!
by NoodzLover July 02, 2011
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3
Acronym for Can You Not?
Similar to cyfn (Can You Fucking Not)
Person 1: omg bae i love you so muchhh <3333
Person 2: cyn
by dgafasaur December 09, 2014
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7
Insult used to describe manipulative, lying, two faced, superficial people.
"She is such a Cyn!"
by Jemima Puddleduck June 16, 2004
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