1. superlative form of buzzy; generating the most excitement, interest, or talk; most trendy or popular
Usage: informal; commonly used in media and entertainment contexts
2. superlative form of buzzy; characterized by the most buzzing sounds or activity
Usage: less common than sense 1

Examples

• That new restaurant is the buzziest spot in town right now.
• The buzziest topic at the awards show was the surprise announcement.
• She wore one of the buzziest fashion designers on the red carpet.
• The buzziest social media trend this week has everyone talking.
• That startup is considered the buzziest company in Silicon Valley.
• The buzziest part of the conference was the keynote speech.