Green’s Dictionary of Slang

(US campus) performing instinctively (and successfully).

1997–2000		Da Bomb 🌐 30: Unconscious; Feeling on fire or in the zone; performing at an excellent level without being mentally challenged, confused or distracted.
2024		D. Rucker Life’s Too Short 110: ]O]nce I heat up, I become unconscious. We mop up the court with these kids.