Green’s Dictionary of Slang

buzzy adj.³

thrilling.

2000		Observer 20 Feb. 9: I am a great believer that the Dome should be shouting great news from the rooftops. We want to make it fun and buzzy to be around.
2009		J. Joso Soothing Music for Stray Cats 62: While all that stuff feels buzzy at that time, like I said, it’s a heap of shit.
2016		Guardian G2 8 Aug. 🌐 The buzziest show of the year [...] is sharp and suspenseful.