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1.
a little wiener who gets in your space and smiles way too much.
i punched that enus in the nads for trying to hug me.
by big jon cannon January 17, 2005
 
2.
Based on the Sigma Nu fraternity at University of California, Irvine. Describes an individual who displays the qualities of a homosexual.
Bobby: Hey, is that guy in Sigma Nu?
Mark: Yeah, that dude is so E Nu.
by ILIKEME February 01, 2007