I didn't hear 'sull up' growin' up, but it's one you can hear out in the country two counties over. So it must be regional.
Hillbilly Dude Says...
I didn't hear 'sull up' growin' up, but it's one you can hear out in the country two counties over. So it must be regional.
Pronunciation
[SULL up] /sʌl ʌp/
Meaning & Usage
- To pout, sulk, or withdraw stubbornly (verb)
Describing someone’s mood
Ella:
He didn’t get the last biscuit.
Nate:
Now he’s sulled up in the corner.
variations: Sulled Up, Sulling Up, Poutin’, Sulk
★ "Sull up" is a distinct Southern/Appalachian verb, not widely used elsewhere. It’s a favorite for describing a child or adult who clams up or sits out after not getting their way. ★
Origin and Etymology
From older Scots-Irish and regional English "sull," meaning to sulk or be stubborn. Early settlers carried it to Appalachia, where it became common in everyday speech.
Usage Notes
Strongly Southern/Appalachian. Outside the region "sull up" is rarely understood, making it a clear marker of regional speech. Often used in humorous or affectionate tones.
Say It Like a Southerner
Say it natural: "sull up" (present tense) or "sulled up" (past tense), with the "u" like "up" and "sull" rhyming with "dull."
Yes - especially among older speakers or in rural areas.
Does it only apply to people?
Mostly, but you might also hear it jokingly about pets or even cars ("the engine sulled up on me").
How does it differ from "pout"?
"Sull up" implies a deeper, more stubborn withdrawal, not just a facial expression.
How to Cite This Page
APA (7th edition)
The Hillbilly Dude. (2025, September 21). Sull Up. HillbillySlang.com. https://www.hillbillyslang.com/definitions/sull-up
MLA (9th edition)
"The Hillbilly Dude." "Sull Up." HillbillySlang.com, 21 Sept. 2025, https://www.hillbillyslang.com/definitions/sull-up.
Chicago (17th edition)
The Hillbilly Dude. "Sull Up." HillbillySlang.com. September 21, 2025. https://www.hillbillyslang.com/definitions/sull-up.
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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...