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1.
a pretty and outgoing girl. She doesn't ask anything from anyone and just loves to be around people. Wants the best for everyone even though it hurts her. No matter what she will always be there for you.
Wow that girl is amazing, she is such a Jianna.
by chiafk November 03, 2010
 
2.
A pickle flavored toothpaste often used to brush the teeth of small misbehaving children in the miniscule country villages of Northern Bulgaria. Can also be used to de-flea cats and dogs when soaked in breast milk.
Guy 1 : "Hey let me borrow some Jianna, my kid just had a temper tantrum."

Guy 2: "I don't know if I have any left my wife is using it to get rid of her fleas..."

Guy 1: "..."
by noobifier2000 August 03, 2010
 
3.
A person who tucks their dick between their legs. also known as manjina
oh my, YOU HAVE A jianna!! ohhhhh
by kwjessie November 20, 2006