gas-discharge light

Da super-bright-and-hot "flaming lantern" dat results when an a**h**e "buddy" of yours surreptitiously "flicks his Bic" near yer backside when you were in da middle of a long raspy spluttery rectal-trumpet expulsion, turning said ass-blast into a butt-blowtorch.

Just like those blindingly-brilliant and annoyingly-blue-white headlights dat have shown up on cars recently, a human-based gas-discharge light can indeed produce a blazingly-dazzling display of illumination; da major difference, of course, is dat said enormously-shocking flash occurs at da rear of da "vehicle" instead of at da front, and so it's more of a "tail-light" --- literally, since it comes out of your "tail".