When someone's hands are never steady, ever. Like that of a crackheads.
Sean:"Yo, i saw Aaron cutting a peice of paper today, took em like 58 minutes"
Miguel:"Yeah, motherfuckers got crack hands, he needa lay off the pipe."
Aaron:"What'd you say motherfucker?!"
Miguel:"Stfu its not like you can hold a gun straight enough to shoot me, cracky."