The idiom "comb through" means to go over something thoroughly or exhaustively, usually in order to find or understand something. It can also imply a negative connotation, such as searching for something with suspicion or malice.

The idiom "no love lost" means that there is no need to worry about any negative consequences of an action or decision, as the outcome will not be dire. It suggests that things will work out in the end and that there is no harm done.

The idiom "bosom friend" refers to a person who is extremely close to you, someone you trust and confide in with your deepest secrets. It suggests a level of intimacy that goes beyond mere friendship and into the realm of emotional support and connection.

The idiom "run out" means to use up all of something, usually resources or supplies, until there is none left. It can also mean to use up one's patience, energy, or resources to the point of exhaustion.

The idiom "finishing touch" is used to describe the last thing or action that completes something. It refers to a small detail or final aspect of a project, task, or creation that gives it an extra level of perfection or completeness.