There's nothing worse than finding out you've been using a phrase incorrectly, so I wanted to be one of the first to tell you that "hot as balls," refers to a specific temperature. "Hot as balls," was most used at 84 degrees.
YES! Someone actually took the time to conduct a study that shows at what specific temperature people used certain phrases.
Same goes for "hot as hell," which specifically refers to an average of 86 degrees.