Okay, I understand. Here we go:

Data from United States The phrases from the United States using "dumb NOUN" largely function as insults or terms of disparagement. "Dumb" is used to express a negative evaluation of someone's intelligence, behavior, or actions. It's applied to individuals (e.g., "dumb kid," "dumb jock," "dumb bitch"), groups (e.g., "dumb shits," "dumb republicans"), or even things (e.g., "dumb movies," "dumb statement"). The usage often carries a strong emotional charge, indicating frustration, anger, or contempt. The phrases suggest a casual and sometimes aggressive use of "dumb" to express disapproval.

Data from Great Britain The single phrase from Great Britain, "dumb down," suggests a different usage and meaning of "dumb." In this context, "dumb" seems to be used as a verb modifier, related to simplifying or reducing the complexity of something. Instead of directly insulting someone's intelligence, the phrase focuses on the act of making something easier to understand, potentially at the expense of intellectual rigor. It implies a process of simplification, often with a negative connotation of pandering to a lower level of understanding.

Comparison of phrases in [United States] and [Great Britain] The phrases for "dumb NOUN" differ significantly between the United States and Great Britain, based on the provided data. In the United States, "dumb" is primarily used as an adjective to directly insult or criticize the intelligence, behavior, or quality of people and things. It's a direct, often aggressive, expression of disapproval. In contrast, the single example from Great Britain, "dumb down," uses "dumb" as a verb modifier, indicating a process of simplification. This suggests a focus on the act of making something less complex rather than directly attacking someone's intelligence. The US phrases display a far greater range of insults directed at different groups of people. The UK usage, as represented by the single phrase, is focused on a broader concept of intellectual simplification, rather than a personal insult. The difference in frequency of results also suggests a higher use of "dumb" as an insult in the US.