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A moose with one antler in the midle of its forehead. Also known as the moosicorn.

Also a hand jesture where one puts their hand on there forehead while someone is saying something important and yells UNIMOOSE!!
Man did you see that Unimoose.

Bill: So I'm really really in a... Steve: UNIMOOSE!!
John: Haha all the other mooses would make fun of it.
by pcheck August 21, 2010
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