Don't you dare意思

"Don't you dare" is an expression used to convey a strong warning or threat. It is often used when someone is about to do something that the speaker believes is wrong, foolish, or disrespectful. The phrase implies that the speaker is serious and will not tolerate the action that is about to take place. It is a way of saying "I forbid you" or "You better not" in a more forceful and emphatic manner.