What is what does bullshit means?

According to the Merriam-Webster dictionary, bullshit is "language, behavior, or ideas that are absurd, false, or exaggerated, and are intended to deceive or mislead." It is commonly used to describe blatant falsehood, insincerity, or exaggeration. Bullshit can refer to both spoken and written language, as well as actions and behavior. It is often used in informal and casual conversations, as well as in professional and academic settings to critique and expose deception.