The idiom "rocket science" is used to describe a subject or task that is extremely complex and difficult to understand, especially for someone who is not an expert in the field.

The idiom "get the sack" means to be fired or dismissed from a job. It can also mean being expelled or excluded from an organization, such as school or club.

The idiom "burn bridges" means to cut off or destroy a path or opportunity that could be used later, often by taking reckless or hasty actions. It refers to the idea of sabotaging one's own future prospects or relationships in order to gain immediate satisfaction.

The idiom "fall for" means to be attracted or drawn towards something, especially someone, to the point of becoming infatuated or emotionally involved. It can also mean to be tricked or deceived by something or someone, often unintentionally.

The idiom "lose your marbles" means to lose one's sanity, composure, or control over a situation. It is often used to describe someone who is behaving erratically or has become unhinged.