What is boo hoo meaning?

The phrase "boo hoo" is an expression used to express pity, disappointment, or sadness over something. It can be used in a mocking or teasing way, as well as in a genuine way to console or empathize with someone. The phrase is often used in a childish or childish manner, making it a colloquial expression, and it is often used in informal situations such as among friends or family members. Its origin is unknown, but it has been used in English language since the mid-19th century.