Foxfire is the faint green glow that sometimes shines from rotting wood on damp nights. In Southern and Appalachian lore, it’s both a natural wonder and a bit of quiet magic - light that seems alive in the dark.
When I was a young'un, my favorite campin' spot was deep in the western NC mountains, close to a branch. I found lots of chunks of foxfire glowin' green, and had a hard time convincin' people it was real. But I did take a chunk back home eventually, and it glowed for a a really long time.
Hillbilly Dude Says...
When I was a young'un, my favorite campin' spot was deep in the western NC mountains, close to a branch. I found lots of chunks of foxfire glowin' green, and had a hard time convincin' people it was real. But I did take a chunk back home eventually, and it glowed for a a really long time.
Pronunciation
[FOX-fahyuhr] ~ [FOX-fahr]
/ˈfɑks.faɪɚ/
Meaning & Usage
- Bioluminescent Fungi on Wood (noun)
Used in nature and folklore talk
Mamaw:
That stump’s glowin’ again - it’s just foxfire.
Papaw:
Ain’t no harm in it. Just the woods lettin’ off light.
- Folkloric Light or Omen (noun, figurative)
Used in old tales
Estel:
He followed that foxfire and never come back.
Elmer:
Some lights best left alone.
★ The glow comes from fungi that live in decaying wood, but that don’t make it any less mysterious when you see it out in the holler on a moonless night. ★
Origin and Etymology
From Middle English foxfyr ("false fire"). The term dates back to at least the 1500s, but it found a second home in Appalachia, where settlers used it for the faint green light seen in the woods.
Usage Notes
Still used across the Southern Appalachians and Ozarks. The word also became famous through The Foxfire Book series, a collection of mountain lore and crafts first published in 1972.
The natural glow from certain fungi on rotting wood - or, in old tales, a ghostly light in the woods.
Is it dangerous?
No - it’s harmless and natural, though it’s earned plenty of spooky stories.
Where is it seen?
Most often in humid Southern forests, especially in Appalachia, on fallen logs or stumps after rain.
How to Cite This Page
APA (7th edition)
The Hillbilly Dude. (2025, October 16). Foxfire. HillbillySlang.com. https://www.hillbillyslang.com/definitions/foxfire
MLA (9th edition)
"The Hillbilly Dude." "Foxfire." HillbillySlang.com, 16 Oct. 2025, https://www.hillbillyslang.com/definitions/foxfire.
Chicago (17th edition)
The Hillbilly Dude. "Foxfire." HillbillySlang.com. October 16, 2025. https://www.hillbillyslang.com/definitions/foxfire.
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Created by a true, actual, proper, real-life hillbilly, HillbillySlang is a growing field guide to culture, speech, memory, and meaning - rooted in Appalachia but reaching across the world. Every slang word, saying, accent and story is gathered from first-hand experience and trusted sources. The goal: preserve authentic voices and share them with writers, learners, and culture lovers everywhere - with a little humor thrown in here and there. Read more...