Heat Lightning 

Typically associated with weather, heat lightning is simply lightning. The nature of it can also be categorized with other words such as energy, spark, charge, etc. Weather aside, this phenomenon can be used to describe physical chemistry such as an intense feeling and/or moment.

When he kissed me, I went from cold to hot instantly...like heat lightning.

Heat Lightning by RahnBurgundy July 23, 2013

Heat Lightning 

A violent and deadly thunder strike... about 1 million and 10 times more deadly then a normal lightning. If your alive to see these rare (but constant occurrences in the United States), you more then likely will be dead. Caused from the amazing summers of the lower US states which reach above 400 degrees, the Heat Lighting forms as a giant ball of heat. Following which, the blistering sun turns it into a menacing tornado. This tornado, then forms a lightning bolt. The lightning bolt can reach temperatures of above 1000 degrees, and has been known to melt cars on impact. Once this bolt has formed from the sky and has stuck the ground, it then creates an explosion which ripples through the ground melting cars, people, streets, and houses. Its truly devastating.

Normal Lightning, but much hotter and deadlier. The word Heat Lightning is defined from its much hotter.

Heat Lightning by Heathlighting November 29, 2011

heat lightning 

Lightning that flashes during a summer thunderstorm but doen't produce a thunderclap. Thia event usually occurs during the summer monsoon season when the outside temperture is so warm {90-110 degrees F] that it doesn't produce the cool air that is needed to produce thunder.

A monsoon overlaped into the Southern Californis basin & produce a series of heat lightning strikes.

heat lightning by BruinKiller3469 March 27, 2009

Headlighting 

When a person rubs their nipples against another person's nipples until both parties nipples are erect.

When John and I were headlighting last night I felt like we had never been closer.

Headlighting by Not Steve 16 October 18, 2021