To have a rude look on your face. Muggin. Origin; Utah. Other forms; Scuz.
Why you over there scuzin?
by Mickbeezy July 24, 2009
when your sister is also your cousin; your cousin is also your sister.
Scuzins the way Missourians rolls
by --1--2--3-- May 18, 2013
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