To insult. To talk shit. To talk smack.
Say nigga why you be talking head?
"Talkin' head gonna put you on your deathbed
Just cuz you got a gat, that's just why you actin brave
Got a gat I got a GLOCK, what'cha gone do?
Handle your business, DON'T LET YOUR BUSINESS HANDLE YOU!" - Mystikal in the song "Murderer"