Adj.: a derivative of "shizzle", as made popular in hip-hop vernacular by Calvin Broadus (a.k.a. Snoop Doggy Dogg, a.k.a. Tha Doggfather). Used to indicate that the subject is of exceptional quality, impressive or awe-inspiring.
"Did you see that dude with the two girlfriends at the club last night? That guy is SHEUGAL for real."