The idiom "my way or the highway" is used to express that someone will not compromise their beliefs, values, or expectations. It means that they are unyielding and will stand firm on what they consider important.

The idiom "double date" refers to a situation where two couples go on a date together, often because they are mutual friends or family members. It is also used to describe a romantic or platonic outing with someone else's partner.

The idiom "by the skin of your teeth" means to escape from danger or a difficult situation by a narrow margin or just in time, often due to luck or chance. It is also used to describe someone who manages to achieve something with only minimal effort or skill.

The idiom "shifting sands" refers to something that is constantly changing, unstable, or difficult to predict or control. It can also indicate uncertainty or ambiguity in a situation.

The idiom "belly up" means to face a difficult situation head-on, to confront a problem directly, or to give up or fail in an attempt. It can also refer to being killed or dying in battle.