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1.
a convenient say-all; mostly used as an adjective. can be negative or positive.
That scunci bitch stole my pants!

Cate: Yeah you should have come to the party- That hottie James came and got so wasted he stripped!

Sara: I wish I had- sound like you had some scunci times!
by scunci scuzzzzzz October 15, 2006
 
2.
can be used as any part of speech...usually a negative term; a hair brush
"Alex is a stupid SCUNCI!"
by ejay day October 31, 2003