The old southern meaning of spoof or the act of "spoofing" is to trick or otherwise play a practical joke on someone. (This might be remembered from the old "Deputy Dawg" cartoon where the mischievous Muskie the Muskrat constantly spoofed Vince Van Gopher, Deputy Dawg and Sheriff.)
Muskie: "Depty Dawg, Depty Dawg! Vince fell in the quickmud!"
Deputy Dawg: "Dag nabit! This better not be a spoof, Muskie!"
Muskie: "It's possible... It's possible..."