Next post.
Previous post.

Up to Sumpin’

In Appalachian and Southern talk, "up to sumpin’" means someone is getting into mischief or doing something sneaky. It’s a playful way to say trouble’s brewing, even if it’s harmless.

#Appalachia   #Southern

Pronunciation

[up-tuh SUM-pin]

Meaning & Usage

- Getting into mischief (phrase)

Suspiciously quiet
Mae:
Why’s the barn so still?

Earl:
Them kids are up to sumpin’, I can tell.

- Doing something unknown (phrase)

Not telling the whole truth
Ruby:
He’s been smilin’ all day.

Estel:
Yep, he’s up to sumpin’ - bet it’s a surprise.

other spellings: up to something, up to somethin’, up to sumthin’, bein’ sneaky, and gettin’ into trouble
★ If someone’s "up to sumpin’," it ain’t usually good - unless it’s playful trouble, like sneakin’ cookies or pullin’ pranks. The phrase almost always hints at suspicion. ★

Origin

Built from the colloquial form "sumpin’" for "something." The full phrase "up to sumpin’" became a regional way of expressing suspicion, especially toward children or folks actin’ shifty.

Notes

This saying is most often used with kids, neighbors, or critters who’ve gone too quiet. It carries a playful suspicion more than a serious accusation. Writers use it in dialogue to capture Appalachian or Southern flavor.

Say It Like a Southerner

Say it easy and quick: "up-tuh SUM-pin." The "th" from "something" drops away, leaving the shorter, folksy "sumpin’."

Kin Topics

Kin Words, Stories and More

Common Questions

Does "up to sumpin’" always mean trouble?
Nearly always - though the "trouble" may be small or funny, not serious.
Is it used outside Appalachia?
Yes, you’ll hear it across the South and in rural areas elsewhere in the U.S.
Do younger people still use it?
Yes, often jokingly - especially when kids or pets are suspiciously quiet.
What’s the difference between "up to sumpin’" and "up to something"?
Meaning is the same, but "sumpin’" gives it a folksy, Appalachian twist.
About
We are a growing field guide to culture, speech, memory, and meaning - rooted in Appalachia, but wide as the world. Read more...
Slang and folklore change from place to place - this is how I know it. Read the full disclaimer and terms of use
© Hillbilly Slang | Original audio and content may not be reused without permission. Keeping the Mountains Talking Since 2025