1.   Let him do six months or a year, to get it through his thick skull that he done wrong.

2.   Maybe that had even penetrated his thick skull.

3.   Neither you nor they seem to be able to get this obvious point through your thick skulls.

4.   Orcs have large heads with huge jaws but tiny foreheads behind which lurk a thick skull and not very much brain.

5.   What could I say that would penetrate his thick skull?

6.   But not even the ample clout of the Oval Office, it seems, can penetrate the thick skulls of the baseball labor impasse.

7.   In stringing out Seifert, Donahue, Lewis and the Phantom of the Opera, Jones has been relentlessly trying to drum his point through our thick skulls.

8.   It took a little bit for that to get through my thick skull.

9.   Now faced with fraud charges, Marcus is soon up to his thick skull in people who would like to see him dead.

10.   One thick skull, penetrated.