Grouse is a noun meaning a medium-to-large North American game bird of the gallinaceous family, typically brown and mottled for camouflage; it also refers to a complaint or grumble in informal usage. In context, it can denote hunting quarry, or be used as a verb casually (“to grouse about something”). The term carries regional familiarity and can appear in wildlife, hunting, and colloquial complaint discussions.
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