The idiom "blind spot" refers to a person's inability or unwillingness to acknowledge or recognize their own shortcomings, mistakes, or areas of weakness. It is often used to describe someone who is overly confident in themselves and lacks self-awareness.

The idiom "long time no see" is used to express surprise or pleasure when encountering someone after a long absence. It can also be used to express regret or disappointment at not seeing someone for such a long period of time.

The idiom "can't judge a book by its cover" means that one should not make judgments about something or someone based solely on their appearance or external characteristics.

The idiom "kick the bucket" is used to describe someone who has died or passed away. It is considered a euphemism for saying that someone has died, and it is often used in informal language.

The idiom "household name" refers to a brand, product, or service that is very well-known and commonly recognized by people within a household or family unit. It suggests that the entity has become so familiar that it is almost like part of the household itself.