A jina is another word for the Vagina.
"i need to shave my jina"
Similar to the Italian name Gina. Although Jina isn't Italian for "great", Jinas are still traditionally adorable, sensitive, intelligent, and intriguing.
The primary difference between a "Gina" and a "Jina"? The latter tend to be more "classically" beautiful, while the former are easily described as "commercial" or "hott". Jinas are reminiscent of Marilyn Monroe, Audrey Hepburn, and/or Sophia Loren.
"I wish my girlfriend was a Jina."
"I need a Jina in my life. She'd help me debate these insane republicans AND throw-down in the bedroom tonight."
The alter-ego a girl acquires when she is drunk that may result in:
Lying for no reason
Hooking up with people she normally wouldn't
Trying to get a hotel room just for the bathrobes
Other acts of drunken splendor
(Pronounced like vagina without the va.)
Party guy: "How old are you?"
Jina's best friend: "What? Your 20."
Jina: "Jina is 17."
When talking about a night in first person: I hate that guy but Jina was into it so I ended up sleeping over.