In the southern United States, primarily in Florida its a slang term for very dark tinted windows.
"Damn, that looks like the police wit dem dark boys."-Niggas on the block
by TJ Gage May 12, 2008
1 more definition
really dark shades perferably black
i rocked my darkboys wit dem new bos i got.
by Coonfox October 12, 2006