The idiom "mark my words" is used to express a warning or a statement that will be important later. It means something very serious, especially if it involves legal or financial consequences.

The idiom "stiff upper lip" refers to maintaining a calm and composed demeanor, even during difficult or emotional situations. It implies that one is able to control their emotions and not show any signs of weakness or vulnerability.

The idiom "spitting image" means someone who is an exact replica or mirror image of another person, often in terms of appearance, personality, or behavior.

The idiom "shoot from the hip" means to act quickly and decisively without deliberation or hesitation. It implies that the person is not thinking about their actions before they take them, but rather relying on their instincts and gut feeling.

The idiom "once bitten, twice shy" means that someone who has had a negative experience is more likely to be cautious or hesitant in the future.