The idiom "take it on the chin" is used to describe someone who accepts a difficult or unpleasant situation with a negative attitude, instead of acknowledging their mistakes or weaknesses. It implies that they are taking the blow directly and not blaming others or shifting responsibility.

The idiom "in bed with" means to be romantically involved or having a sexual relationship with someone. It can also refer to being close friends or confidants. The figurative meaning is that someone is sharing secrets, information or experiences with another person they trust.

The idiom "in a pinch" is used to describe a situation where someone is in a difficult or embarrassing position, often because they have run out of resources or options. It can also refer to a situation where someone needs help or support from others.

The idiom "come to a pretty pass" means to reach a difficult or unpleasant situation that requires action or decision-making, often resulting in negative consequences. It can also mean reaching a state of desperation or hopelessness, and a lack of options or resources.

The idiom "man's best friend" refers to a dog, which is often considered the most loyal and affectionate companion for humans. It implies that dogs are highly valued by people for their companionship and loyalty.