#BNBBreaksATH likely refers to Binance Coin (BNB) breaking its All-Time High (ATH) price — meaning it's reached its highest market price ever.
This is a major event in the crypto world, often driven by factors like:
Increased adoption of Binance Smart Chain (BSC)
Major partnerships or announcements from Binance
Bullish sentiment across the broader crypto market
Scarcity or reduced token supply (e.g., due to burns)
$BNB