choo-choo

American  

[choo-choo] / ˈtʃuˌtʃu /

noun

1. a train.

2. the sound of a steam locomotive.

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verb (used without object)

choo-chooed, choo-chooing

1. to make a sound like that made by a steam locomotive.

2. to travel by train.

choo-choo British  

/ ˈtʃuːˌtʃuː /

noun

1. a child's name for a railway train

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Etymology

Origin of choo-choo

First recorded in 1900–05; imitative

Example Sentences

Then, she is on her way, leading a "choo-choo train" formed by a line of delighted children, sprinkling humour, happiness and even a little hope, but not the real aid they so desperately need.

From BBC • Feb. 1, 2026

Ryan stands up and picks out a “Lego choo-choo train.”

From New York Times • Jan. 5, 2022

“He’s like a choo-choo train. It’s just, ‘Choo choo!'”

From Seattle Times • Dec. 30, 2021

Because while Chattanooga has advanced beyond its choo-choo days, it still embraces old-fashioned Southern gentility.

From Washington Post • Sep. 20, 2017

When they were all doing the march-and-hop, they formed a train, hands on shoulders, and did a choo-choo or conga around the gym.

From "P.S. Be Eleven" by Rita Williams-Garcia