a beautiful flower or an extremely sexy girl. a flirtatious, crazy person can be referred to as a Violet. The flower is found in Africa; see African Violets and a Violet girl is found wearing hoop earrings and smiling.
Random Savillion: "Did you see that girl dancing at the club last night?"
Urban Adolescent: "Yeah, dude. She was such a VIOLET."
Random Savillion: "Those flowers are beautiful."
Urban Adolescent: "They're violets."