Top Definition
A generally attractive female who knows how to speak her mind but in a nice way. She has secret passions and lives for art and music. She'll do anything with or for her friends and loves talking to guys. A bit of a flirt, but any Rosellen will know how to seduce you.
Person A) Wow who's that?
Person B) That's Rosellen, of course. Who else?
by Mirrored November 02, 2012
old lady who's super bi***y and drives everyone nuts
hey mom, my new teacher is such a rosellen
what makes you say that honey?
she's such a mean old lady
by old teacher hater September 24, 2012

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