(informal, chiefly, US) To behave like an alpha dog; to behave in a crassly dominant manner, especially at the expense of another male.
At the left was Mr. Trump, the volatile presence who alpha-dogged a season of Republican debates. Now he grimaced, squinted, nodded, pursed his lips, sniffed, huffed and interrupted, becoming, over the night, an agitated man in a box.
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Regional slang from around the English-speaking world — British, Australian, Irish, Caribbean, Nigerian, Filipino, AAVE, and the hyphenated-English dialects that make the internet sound local.
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