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1.
When you over promise someone something by saying ya ya to everything they ask and not following through with it. Usually said by Europeans.
Donnie, can I have free floor mats? Ya Ya of course you can, I promise you I will get them for you.
by brown mountain September 17, 2009
 
2.
well my great great grandmother was called Ya Ya after her grandmother.. a slave..
it is a word from the Yoruban tribe of Africa
one definition is divine
there is no need to {negate} or {disrespect} a name or word from our lost culture out of ignorance
Ya-Ya loved to tell us stories of the old days, unknowingly we were participants in an age old tradition.
by Di'allo December 06, 2005
 
3.
1. term of endearment for an old Greek grandmother

2. used by feminists as a reference to a woman in her prime

2a. meaning, in this context, an old stupid whiny bitch with delusions of sexiness to anyone who is not a feminist
See "Divine Secrets of the YaYa Sisterhood", ad nauseum
by DrCruel May 16, 2009
 
4.
Nickname mostly for a Yarely. Has a bubbly personality, is shy the first time you meet her, girls with this name tend to be quiet but super outgoing,Is really pretty, loves black people, she's really nice to people but has a hidden attitude so watch out you reach that point 'cause Yayas' will snap, has A LOT of friends and tends to be popular but Yayas' keep their most trusted friends to a minimum and hangs out with her closest friends a lot,Yayas are very good friends and very trustful. Sometimes gets mistaken as anti-social but she's not she's just quiet so approach her because she's nice and a very lovable person and very independent so she isn't afraid to stand alone. Yaya is a forever nickname.
Person 1: Do you know yaya?
Person 2: No who is that ?
Person 1: Omg how do you not know yaya !? She's the coolest person you can meet !
Person 2: Who is she though ?
Person 1: She's the pretty girl that people talk about that they say she's quiet but really isn't .
Person 2: OHHHH ! I know who you're talking about now she is really cool I just didn't know what she was called .
by WROTETHISFROMAYAYAPERSPECTIVE September 24, 2011
 
5.
one of the best characters from the move "sandlot". use to agree or say anything you want.
Smalls: what up, do you want to go tackle the beast today?
Yaya: yaya. yaya.
by pandajoi January 19, 2005
 
6.
That point of your High when you are so baked the only word to describe it is yaya.

Coined by DAZE; J, Allday and everday
I had 2 blunts right after another, i went way past fitted all the way to yaya.
by Ricky Allday March 21, 2011
 
7.
A condition of caused by the build up of crazy energy that wants to be expressed.
Look at my puppy jumping around she has the puppy yayas!

I can't stop playing, I've got yayas from sitting inside all day.
by AppleBaby May 26, 2009