Boxhead Share definition Flag The huge/broad square-ish shaped skull of people stemming from Slavic/Balkan heritage. Often owned by people whose names end in “ic” and “ski”. “Man that guy Stojan/Zoran/Luka/Ivan got a huge noggin... such a Boxhead. Remind me never to sit behind him at the movies” Boxhead by LBoogz May 17, 2018