One who is always high, never does his homework, and is too obsessed with memes, anime and manga.
He's such Siyan!
Why?
He's never at school on time!
But he was posting memes this morning!
by Qwerswew April 12, 2017
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A phenomenon found in Turkey. Such girls have long artificial nails, lots of cosmetic surgery, hair extensions and talk in fake foreign accents. Love to say things like see you later alligator even though they don't know English that well. They love to receive overpriced flowers from fancy florists in Etiler. Tend to be pretentious and shallow but are loved by Turkish guys.
She's a gold digger looking for a good time. Such a siyane girl.
by WordMestro2020 March 1, 2021
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a small and feisty girl who eats spicy food and squawks. She is good at cooking and naps a lot. Don't let her cute looks fool you, she has a venom tongue and can say some very mean and untrue things
Do you hear a large bird in pain? Oh, that's just Siyan playing pickleball.

Oh, Siyan! I didn't see you down there
by November 23, 2021
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