The term "911 hotman" functions grammatically as a compound noun. This classification is based on its use as a single lexical unit to name a specific concept or type of person: a man whose attractiveness is considered so extreme it constitutes a metaphorical emergency. The entire phrase operates as one noun, similar to terms like "firefighter" or "high school."
An analysis of its components confirms this classification. The initial element, "911," is a proper noun (the U.S. emergency telephone number) that acts as an attributive noun or a modifier in this context. Its function is adjectival, serving as a hyperbolic intensifier. The second element, "hotman," is itself a colloquial compound noun, combining the adjective "hot" (slang for attractive) with the noun "man." When joined, the modifier "911" qualifies the noun "hotman," creating a new, more specific noun phrase that is treated as a single unit.
In practical application, the phrase can be used as the subject, object, or complement in a sentence (e.g., "The character was considered a 911 hotman."). Despite its origins in informal slang and internet culture, its grammatical role is that of a compound noun. The structure follows an English pattern where one noun modifies another to create a new semantic entity, with "911" serving this modifying purpose in an idiomatic way.