Casual, originally Cantonese (CC-CEDICT notes the alt reading [jìnbào]). Heavily used in mainland marketing and clickbait headlines for music tracks, sports moments, and gossip — basically any content the writer wants to brand as 'fire.'
memory
劲 (jìn) = power/vigor + 爆 (bào) = to explode → 'powered up till it bursts.' Easy mnemonic for the 'explosively exciting' meaning.
