An insult akin to "butthead;" reserved for people who are fully convinced that their every opinion is correct, even when confronted with hard evidence to the contrary.
Terry Gross: "What are your inspirations for your character?"
Stephen Colbert: "Well, the slickness of Anderson Cooper, obviously Bill O'Reilly's pomp, and the incurious bullethead that is Sean Hannity."
Stephen Colbert: "Well, the slickness of Anderson Cooper, obviously Bill O'Reilly's pomp, and the incurious bullethead that is Sean Hannity."
by meddle October 24, 2007
Get the bulletheadmug. 
by SussaFrassa August 30, 2018
Get the Go Commit BulletHeadmug.