1.AdjectiveUsed other than figuratively or idiomatically: see boiling, hot: very hot in a way that involves boiling of water or other liquids.
"Ouch! Don't sip your tea quite yet — it's still boiling hot!"
2.AdjectiveExtremely hot (having a high temperature: of an object, the weather, a living creature).
"; Back then, if you were a regular person living in the Deep South, you were going to be boiling hot all summer long, no two ways about it — nobody but rich people had central air at home back then."