Usually this idiom is used in a battle or military application in which you remove the most dangerous opponent or the leader first, so that the other enemies will be easier to deal with.
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.
Think about that for a minute. What would happen if you held a snake close to your chest? You'd probably get bitten sooner or later. If you nurture a snake, you've cared for it, and then it turns around and bites you. This idiom means you've trusted someone close to you and they betrayed you.
It means that you are the lowest of the low. You can't be any lower.
To turn completely around and head back in the direction you came from.
The head person.
If your head is "in the clouds," you're a dreamer.
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.
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.
Think about that for a minute. What would happen if you held a snake close to your chest? You'd probably get bitten sooner or later. If you nurture a snake, you've cared for it, and then it turns around and bites you. This idiom means you've trusted someone close to you and they betrayed you.
"Dive in head first" is to rush into a situation without thinking.
It means that you are the lowest of the low. You can't be any lower.
Keep an idea in ones head to act on it later.
To turn completely around and head back in the direction you came from.
The idiom "I lost my head" means that someone acted impulsively or irrationally, often due to strong emotions or stress, without thinking things through carefully. It suggests making a hasty decision or saying something out of anger.
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.