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Another word for a person between 8-11 years of age who is just a young twelvie, either a horny ganga (boy) / masive slut (girl) they are cool by rollin round in big groups of other twelvies or nineies, they often overuse stupid words such as 'swag'.
nineie: bro i got swag
dude: kay
nineie: yea the chicks want mi nob
dude: your like 8y.o
nineie: suck mi dick bro swag
by Bignine August 06, 2014
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