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1.
A term used to describe or name an extremely attractive member of the famale sex.

Can be also pertained as an exotic beauty.

A Joni is usually great at everything, has great hair, and a perfect smile. She has classic taste and is known to have dark mesmerising eyes. A Joni is usually exremely simular looking to Vanessa Hudgens minus the nude photo scandals.
Man # 1 - Look at that!
Man # 2 - Where?
Man # 1 - Over there! She's such a Joni!
Man # 2 - Yeah, she's a real exotic glamour.
by rolands August 30, 2008
 
2.
Joni is a stylish, fun, beautiful, sexy woman with a gorgeous, killer smile. Witty and sharp-tongued when necessary, Joni has a strong character and is extremely charming. She possesses many talents and is culturally aware. Men love Joni. Sure, she's broken a few hearts, but she does so with grace. Joni is widely adored and has many loyal and awesome female friends, however, dumb, bitchy girls tend to seethe with jealousy in her presence or at the very mention of her name, even if they've never met Joni. Men denied by her have also been known to become catty and a little psycho. (See unfavorable definitions for "Joni")
When I grow up, I want to be Joni!"

"Look at Joni, she's always the most stylish woman in the room. And she's smart and sweet, too!"

"Joni is so awesome, you almost want to hate her, but she's just too darned charming!"

"Oh, that Joni!"

"There's something wrong with you if you don't like Joni!"
by wittier than you February 04, 2010
 
3.
joni is hot and dangerous and likes to play lovegames
she is very flexible if you know what i mean
sexy girl she is
"i really want to see joni FLEX HER MUSCLES…….if you know what I'm sayin"
by dancer pants November 08, 2011