שָׂרוּףsaruf meaning in Hebrew
die-hard, crazy about (literally: burned) · adjective (slang), used with על

The man at Teddy Stadium who has been hoarse since the nineties and still shows up in the rain to a game his team will lose. He's saruf.
דני שרוף על הפועל ירושלים, הוא לא פספס משחק בית כבר עשר שנים.
“Danny is crazy about Hapoel Jerusalem; he hasn't missed a home game in ten years.”
What are you saruf al, the team or show you never miss a minute of?