skulled

thick-skulled

Stupid, dimwitted, or obtuse. I was pretty thick-skulled going through high school, but when I started college—I decided to start taking my studies more seriously. Jen's new girlfriend is very nice, but she's pretty thick-skulled.
Farlex Dictionary of Idioms.

skulled

mod. alcohol or drug intoxicated. He’s too skulled to drive.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • thick-skulled
  • be (as) thick as two short planks
  • be (as) thick as a brick
  • be (as) thick as a short plank
  • (as) thick as a brick
  • thick as two short planks
References in periodicals archive
Amor banked on a lucky break when a skulled pitch hit the pin and settled to within tap-in distance for the winning par.
(mac) ** Ghost Rider 2: Spirit of Vengeance 3D (12A) Nic Cage returns as Johnny Blaze who, cursed with the powers of the fiery skulled biker, sets out to stop the devil taking human form, possibly that of a young boy.
While chipping on the practice green at Holden Hills, he skulled the ball into the parking lot and lost it.
Cazaly told her that he had 'skulled' a bottle of vodka and could not remember what he had done.
Journalistic hyperbole described Roseboro as being clubbed, skulled, slugged, smashed, walloped, whacked, battered, belted, bashed, bludgeoned, and beaten, which resulted in his skull or eyebrow or face being "gashed" or "split open." In truth, he received only a glancing blow, in part because he partially deflected the bat with his hand or forearm.
Your teacher is an empty- skulled moron who should look for less exacting employment.
Now, I've always allowed Miss Six controlled and microscopic access to the wine bottle (like the French - so she won't feel the need to get skulled at the age of 14 or thereabouts).
ANO, led by the empty- skulled Americans, the world has already gone crazy.