Twain ryhmes with Train, in fact, Twain is how someone with a lisp or a young child (who would also use Choo Choo) would say train. 'Choo choo train' is a common name to teach children for 'train'. It's just a silly joke.
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Nona The BritOh, Gee, without your help I can't understand this in million years.
Twain ryhmes with Train, in fact, Twain is how someone with a lisp or a young child (who would also use Choo Choo) would say train. 'Choo choo train' is a common name to teach children for 'train'.
It's just a silly joke. Choo choo train/choo choo twain.