The idiom "not the sharpest tool in the shed" is used to describe someone who is not very intelligent or smart, often with a hint of humor. The figurative meaning is that the person in question lacks mental acuity and may struggle to solve problems or make decisions.

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.

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 "eager beaver" is used to describe someone who is extremely eager or enthusiastic about doing something, often to an excessive degree. It can also refer to someone who is highly diligent and hardworking, always ready to take on new tasks and responsibilities.

The idiom "last long" means to endure or continue for a long time. It can also mean to last a longer period of time than expected or desired, often implying that the situation is not improving or worsening.