an individual whose colossal cranial circumference is beyond the norm and, therefore, "off the charts," a melon head, an elephant head.
Look at that mother-fuckin' cowhead; his noggin is the size of St. Patrick's Cathedral!
by weave October 08, 2003
something you say when you are pissed
ughh, i still have a freaking cow head!
by kenziekat May 17, 2008