To embarassingly sabatoge one's own chance at success moments before acheivement by becoming overly confident and showing off. Derived from U.S. snowboarder Lindsay Jacobellis' tumble at the 2006 Olympics.
Jimmy pulled a major Jacobellis the other day. He was almost at the finish line for the 400 meter, then he started dancing, and tripped. The other runners stepped on him, and he came in last. Poor Jimmy.
1. To cost oneself athletic glory and sentence oneself to a lifetime of smarmy people using surname as a verb, esp. through youthfully hubristic hot-dogging.
to attempt to show off and completely fuck yourself over. as seen when Lindsay Jacobellis threw away a gold meal in boardercross by trying to grab method off the last jump.