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big boy

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WordReference Random House Unabridged Dictionary of American English © 2026

Big′ Boy′,

Rail Transportan articulated steam locomotive having a four-wheeled front truck, one section of eight driving wheels, a second section of eight driving wheels, and a four-wheeled rear truck. See table under Whyte classification.

Forum discussions with the word(s) "big boy" in the title:

big boy
Big boy pants
Big boy pants
Big boy stuff
big city boy
big girl big boy
big-boy
if a boy killed his parents, it would have been big news 30 years ago, but today it is normal.
in the big boy's league
Oh, yeah, the big boy downstairs.
Ramrod-style & Peck’s Big Boy-style

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