Porterhouse hey? Another thing we don’t share the same name for.
If I assume the bone is in we call it a T-bone Steak (I love ‘em). Otherwise the bigger piece of meat (without the bone) is Sirloin, and the small side is Porterhouse - NY strip I’ve been told.
We also have Chuck steak lol. A guy I went to school with had the name Stuart. Of course he was known to all and sundry as Chuck.
(Stuart > Stu > Chuck because you use Chuck steak in a stew (or braise)).
Lucky we all speak the same language!

