1 definition by Jonny|B

base jumping

BASE is an acronym that stands for; Building, Antenna, Span (ex. a bridge), Elevation (ex. a cliff). To become a "base jumper", participants in this extreme sport are required to parachute from at least one of each of the four structures/elevations that make up it's name.

Pro snowboarder, Jim Rippey can be seen performing a base jump from an antenna in the movie, TB8.

by Jonny|B June 28, 2005