three finger fatty bo batty
A giant, three finger pinch of snuff usually taken by someone who comes up and asks to bum a pinch off of you. He'll come up and ask, then take half your can in a single pinch.
Koby: "Hey man, can I get a pinch of snuff from you?"
Steve: "Yeah, but don't be takin' no three finger fatty bo batty."
Steve: "Yeah, but don't be takin' no three finger fatty bo batty."