I huge mound of turd that when freshly deposited into a toilet piles up above the water level, much like the way the South Pacific islands were formed from lava piling up from undersea volcanoes.
This phenomena I more frequently occurs in the newer, low water usage toilets. As an added touch, you can plant a small flag on top of it to claim it as yours.
A small piece of information. Derived from the word ken, used often in the scottish language and is synonymous with knowledge.
Person 1: "Hey I don't get this shit. How do you solve this problem?"
Person 2: "I got that one. Give me some kenlets on this assignment and I'll help you w/ that one."