Any activity someone from Kentucky would be predisposed to.
Floating down a river in an inner tube with another inner tube that has a cooler full of natty light is a wonderful hicktivity.
Stump.
A hicktivity is defined by any activity a hick would find particular enjoyment in. Some popular examples of hicktivities include hunting, fishing, muddin', and incest.
Ted: Hey Ricky! Wanna go huntin' at 6 am before the sun come up?
Rick: I'm awfully sorry Ted, but I don't usually partake in hicktivities like I used to.