When a random nearby object is lubed up and shoved up the anus.
1: Did you hear about johnny?
2: Nah, what about johnny?
1: He was at jens house and jens big brother gave him a slippery uncle!!
2: Ahhh No way!!! do you know what was used?
1: hmm... since theyre remodeling there house it was either a 2x4 or a piece of tile.... maybe a drill... im not sure.