- As hot as fire; hot from fire; extremely hot; red-hot.
2010, Sandra Beasley, I Was the Jukebox:
- She knows they expect needles, knives, firehot brands.
2012, Julie Leto, Making Waves:
- The book was firehot and intriguing. Even if he hadn't penned the scenes from Reides' point of view, he knew he'd still assert that the story had best seller written all over it.
2012, Sally J. Walker, Desert Time:
- He tentatively held the cord between two fingers. It was limp, lifeless. Laying the baby down, he pulled a handkerchief from his pocket to wrap around the handle of his firehot knife.