Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

choo choo

noun

Definition of choo choo

informal

  1. 1 or choo choo train :  a railroad train —used by young children or by adults speaking to young children <Here comes the choo choo!>

  2. 2 :  the sound a train makes —used by young children or by adults speaking to young children




Seen and Heard

What made you want to look up choo choo? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

the lowest point

Get Word of the Day daily email!