Hit yo children with that Smith and
Referring to Smith & Wesson (S&W), a firearms manufacturer. This could allude to the previous line of little Timmy and his semi.
“Hittin' the children” here refers to “pistol whipping”. Better not slip up, or A$AP could really put that chrome to your dome.
To help improve the meaning of these lyrics, visit "Long.Live.A$AP" by A$AP Rocky Lyrics and leave a comment on the lyrics box