(chiefly, North America) A cut of beef taken from the thick end of the short loin; it has a T-shaped bone and a large piece of tenderloin; a porterhouse steak.
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(chiefly, North America, now, historical) A public house where porter was sold; often also served steaks, chops etc.
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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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