"Shoot the breeze" is an idiomatic expression that means to pass time or chat casually, often about trivial matters. It can also mean to gossip or talk about someone behind their back.

The idiom "as mad as a hatter" is used to describe someone who is extremely angry, furious, or insane. It means that the person has lost their mind and is behaving in an irrational way. The figurative meaning of the idiom is often used to exaggerate how angry or mad someone is.

The idiom "flog a dead horse" means to continue discussing or repeating something that has already been discussed or repeated many times, despite its lack of relevance or interest. It suggests that the speaker is taking an old or outdated topic and beating it to death.

The idiom "put your foot in it" means to make a mistake, or do something that is considered a blunder or error. It can also mean accidentally doing something wrong, or making a misstep.

The idiom "come to think of/about it" is used to express surprise or realization after considering something for a moment. It means that someone has just remembered or thought about something that they had previously forgotten or not considered.