The word "大伙儿" is formed by combining three elements: the character "大" (dà), meaning "big" or "great", which amplifies the scope; the character "伙" (huǒ), which originally refers to a partnership, group, or messmates, indicating a collective; and the colloquial suffix "儿" (ér), a phonetic addition common in northern Mandarin that adds a tone of familiarity and colloquial ease. Together, they blend conceptually to create a single, informal term that warmly refers to "everyone in the group" or "the whole crowd", with the amplification, collectiveness, and spoken casualness baked directly into its structure.