Top Definition
A woman with the skills to win the hearts of many men, and built only on romance and adventure. She is never down to long, for she is always on to conquer her next dream.
She is indeed a Sidonia
#sausy #romantic #competitive #beautiful #dreamer
by Hirai March 30, 2008
A person who tends of over think every aspect of life and values a hot cup of coffee with the mexican gardner much more than a appointment at the nail salon.

This person also has a large amount of random information on the seasonal migration pattern of the Columbian mountain Yak.
Damn, she's a Sidonia but what is she talking about? Yaks?
#cydonia #seedonya #crazy #arrogant #rich
by Funky Egg February 09, 2010
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