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1.
1. Slang for a small town in Mississippi called Picayune.

2. To act tough or bad as referenced to in the song by the Back Yard Boyz, a small time rap group.
I'm going to visit my parents in the Yune this weekend.

If your girlfriend doesn't do what you say get Yune wit it.
by YuneIsta February 02, 2010
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