It means that the person is slow to catch on... isn't understanding things as quickly as other people.
If you have a good head on your shoulders, think what that could mean. Your head is where your brain is. If you have a good brain, you must be able to think pretty well. So having a good head on your shoulders means you're a good thinker.
Any phrase that means exactly what it seems to mean is a NON-example. "The table was made of wood" is not an idiom.
It means that the person is giving you their full attention.
It means to explode with anger/vent anger. The boss really blew his stack when I told him to stick his job.
It means you do not have to pay for dinner,either it is free or someone else will pay for you. This idiom usually means the 'house' or restaurant owner will pay for not 'anyone'.
Laying it on thick, spreading it on thick can either mean you are exaggerating or heaping praise on someone that you expect will help you.
The head person.
Stay calm
An idiom is something that does not mean what the phrase says literally, so yes. You can't actually laugh your head off.
"Dive in head first" is to rush into a situation without thinking.
To turn completely around and head back in the direction you came from.
Keep an idea in ones head to act on it later.
If used as an idiom, it usually means that you are confused about something. The image is of you scratching your head to try to think better.
a pachyphalasaurus is a dinosaur with a crown shaped head . pachycephlasaurus mean thick head
"Your head is going to explode" IS an idiom. It means you have too much to think about.
A very severe headache, as if an imaginary axe is "splitting your head in two".
The idiom "a hot head" refers to someone who is easily angered or quick to become upset or frustrated. It implies that the person has a tendency to react emotionally or impulsively in challenging situations.