hot as fire

*hot as fire

 and *hot as hell
very hot; burning hot. (*Also: as ~. Use hell with caution.) I'm afraid Betsy has a high fever. Her forehead is hot as fire. It's as hot as hell outside. It must be near 100 degrees.
See also: fire, hot
References in classic literature ?
But it was hot as fire, pale as water, and quick as death with its kick.
Enough for me, that here I am, with the mighty merchant's note in my hand, as large as life, as hot as fire, and as happy as a king
Capital soup this -- hot as fire -- reminds me of the soup we used to have in the West Indies in the year Three.