A thick head noun phrase informal
Someone dumb and slow-witted.
You know you can't trust Tim. That guy has a thick head.
To have an aching head and hazy thoughts as a result of being unwell or drinking too much alcohol.
I can't concentrate on anything because I'm having a thick head now. I shouldn't have drunk too much last night.
A thick, creamy foam formed when beer is poured into a glass.
Henry really enjoys drinking beers with thick heads.
Extremely stupid
Very stupid, or silly
Stupid or crazy
(n): a fool person,
(adj): stupid, foolish, silly
A stupid person or an idiot
This phrase appeared for the first time in the 1700s.
A legal matter that is very easy to solve
The house owners didn't lock the doors before going out, and that's why they got broken in. This is an open and shut case.