chum
1 Americannoun
-
a close or intimate companion.
boyhood chums.
-
Older Use. a roommate, as at college.
verb (used without object)
-
to associate closely.
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Older Use. to share a room or rooms with another, especially in a dormitory at a college or prep school.
noun
-
cut or ground bait dumped into the water to attract fish to the area where one is fishing.
-
fish refuse or scraps discarded by a cannery.
verb (used without object)
verb (used with object)
-
to dump chum into (a body of water) so as to attract fish.
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to lure (fish) with chum.
They chummed the fish with hamburger.
noun
noun
verb
-
to be or become an intimate friend (of)
-
(tr) to accompany
I'll chum you home
noun
noun
Etymology
Origin of chum1
First recorded in 1675–85; of uncertain origin
Origin of chum2
An Americanism dating back to 1855–60; of uncertain origin
Explanation
A chum is a friend or a pal. You and your best chums might spend the weekend camping together. The informal word chum is more common in Britain than the US, but you can still talk about your school chums or the new chum you made on a Caribbean cruise. Another kind of chum couldn't be more different from a buddy: it's chopped up fish parts used as bait on a fishing boat. This meaning comes from the Scottish chum, "food," while the first definition was Oxford University slang for a roommate or "chamber fellow."
Vocabulary lists containing chum
"Diary of a Wimpy Kid" by Jeff Kinney
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Shout
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Primates
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
The team's findings, published in Ecology & Evolution, showed that anisakid levels increased in chum and pink salmon between 1979 and 2021.
From Science Daily ● Apr. 1, 2026
He landed the role of Marty’s chum Dion.
From The Wall Street Journal ● Dec. 26, 2025
"The next morning, it was clear that Maxwell had conferred with her royal chum because she told me: 'You did well. The prince had fun.'"
From BBC ● Oct. 19, 2025
When reporting out his story, I contacted Stern, the filmmaker and old prep school chum who made The Preppy Murder.
From Slate ● Oct. 13, 2025
The idea is, attract small fish into the chum slick and the big fish will rise up to feed on the small fish.
From "The Young Man and the Sea" by Rodman Philbrick
The waters have been chummed and the sharks are beginning to circle.
From Salon ● Aug. 1, 2025
The other piece of this you tackle in the brief and that I think gets chummed up with a lot of bad history is that we need implementing legislation.
From Slate ● Feb. 5, 2024
I don’t think it’s overly prudish to wonder just where the line of decency is as audience bloodlust continues to get chummed.
From The Guardian ● Feb. 10, 2017
More recently John Hamm and South Park's Matt Stone strolled in, and last year Noel Gallagher, Morrissey and a latte-sipping Russell Brand chummed up for a photo here.
From BBC ● Dec. 17, 2014
The people I’d always chummed around with would stop speaking to you if they so much as suspected you’d ever gone poo behind a bush.
From "The Poisonwood Bible" by Barbara Kingsolver
In a surreal moment, the two men were laughing and chumming it up like old friends.
From Salon ● Jul. 26, 2025
Court Whelan, chief sustainability officer with Natural Habitat Adventures, an eco-tour operator, said the pendulum is also swinging against chumming waters to attract marine animals, which he describes as “unnatural interference.”
From Washington Post ● Aug. 18, 2022
It is unlikely two of the SEC’s superstar coaches will be chumming around Destin, Florida, together.
From Seattle Times ● May 19, 2022
Though Brees also looks like a coward by chumming up with Taylor as though nothing happened, there’s not much he can do.
From Fox News ● Aug. 31, 2021
Two kids appeared at Percy’s side, the same ones Annabeth had seen him chumming around with earlier.
From "The Mark of Athena" by Rick Riordan
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
