The nekkade is a decade performed in the nude. This is a freestyle bike trick invented by hecKtor Dangus during the summer of 2009.
For video documentation, Google search the word 'nekkade'.
Do it for the lulz.
Cops to Dangus : "That nekkade was truly incredible, but we're going to have to ask you to put some pants on, sir."
Dangus to cops : "I bet you guys listen to 311".