1 definition by MrBunny

A man with the character of a young child. Also could be a juvenile who is too young to be old, but too old to be young. An old soul trapped in the body of an adolescent. A man who is too old for babysitting, but desperately needs it.

plural: manchildren
"Her boyfriend, Darren, is a complete and total man child. I'd offer to babysit it, but it's kind of creepy."
by MrBunny December 9, 2011
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