The art of vertically defecating into a toilet in an unnecessarily furious manner. The act is performed stood up facing towards the toilet cistern whilst performing the traditional maori haka. A Knowlesy Time, if performed correctly, can provide a gigantic “mermaids kiss” to the gooch depending on the weight of the defecation.
Mate, Ken left the bathroom unlocked and I accidently walked in on him doing a Knowlesy Time. He was screaming his head off and there was shit all over the shop, it was sweet.