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2.
when your sister is also your cousin; your cousin is also your sister.

origin:
MISSOURI
Scuzins the way Missourians rolls
by --1--2--3-- May 18, 2013
0 1
 
1.
To have a rude look on your face. Muggin. Origin; Utah. Other forms; Scuz.
Why you over there scuzin?
by Mickbeezy July 24, 2009
2 1
 
3.
A nasty cousin, very grimey, acts like a bacteria in your family environment.
Theres my scuzin andrew brushing his teeth in the kitchen sink again. Gross.
by Ed Mendez October 01, 2009
0 1