Which term best describes something that is loud and noisy, often in a rough manner?

The term "boisterous" accurately captures the essence of something that is loud, noisy, and often conveys a sense of roughness or exuberance. This adjective inherently describes an atmosphere or behavior that is full of energy, possibly chaotic, and typically lacks subtlety or restraint. For instance, a boisterous celebration might involve loud laughter, shouting, and a lively environment, embodying the description provided in the question.

The other terms present different meanings. "Boorish" refers to someone who is rude or clumsy in social situations, lacking refinement or sensitivity rather than focusing specifically on noise or volume. "Bourgeois" pertains to the middle class, often with connotations of materialism or conventional attitudes, and does not relate to being loud or noisy. "Canon" relates to established rules or principles, particularly in arts or literature, which makes it unrelated to the description of noise and roughness.