Top Definition
A girl who loves to act like a kid, but can be serious when she wants to. She acts like one of the guys, she can down a big mac in three bites, she plays Call of Duty on a regular basis, and is prettiest in sweats and a messy ponytail.
Bro, did you meet my new girlfriend?
Yeah, she's such a Jasynda!
by pooka12 December 19, 2011

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