noun. A shithead squared.
Real citation: "I agree with sara you shitheadface! But anyhow whats up!?"
(A.DUCK, Aug. 20, 2006, http://profile.myspace.com/index.cfm?fuseaction=user.viewprofile&friendid=53797465)
Made-up citation: "When dating, I constantly fear the emergence of my inner shitheadface--though I probably have an inner poopoobrain at worst."