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1. Unibuck
Someone with one buck tooth instead of 2. Can be natural or can be someone who has had their tooth knocked out.

The mouth equivalent of a unibrow.
"One of my front teeth just fell out, now I look like a unibuck."
buy unibuck mugs & shirts
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by GingerJewRatHallMonitor.. May 3, 2009 share this add a video