1. I ain't holding back on account of you, you thick-headed grasshopper.

2. In Archenemies comic books, thick-headed Ethan has no idea that his roommate, Vincent, is the megalomaniacal Underlord

3. 205) Yet the scorn dominated: "One thing is certain, these thick-headed John Bulls, whose Brainpans seem to have been specially manufactured for the constables' bludgeons, will never get anywhere without a really bloody encounter with the ruling powers."(p.