About 97 degrees Fahrenheit. Unlike, say, "hot as hell" or "scorching hot," this expression is actually fairly precise, since the temperature of one's balls is carefully regulated by the scrotum to maintain a high sperm count.
Synonyms for hot as balls
On this page, you will find 30 slang terms related to hot as balls. Some of the top words include: Pheonix, Emmy, smokin, tippie, doink, and 25 more.