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1.
An adolesence ranging from the ages of 13 to 18 who is very mature in what they do; a teen who's young on the outside and grown on the inside
I like talking to this yungin, me and him can relate.
by dj32089 September 18, 2008
 
2.
refers to a young homie, or one who wants to remain forever young.
by lyrix January 31, 2005