/ˈbæŋə/
(slang, by extension) Any particularly good or pleasing thing.
2025 February, Harvey Randall, “Best Tactics 2024: Tactical Breach Wizards”, in PC Gamer (US)[1], number 392, page 42; published online 21 December 2024:
When the only problem a game gives me is that I wish there was more of it, I can confidently say it’s a banger.
(Internet slang, also attributive) A good or popular post.
can’t stop getting bangers