The Collaborative International Dictionary
Bungee jump
Bungee jump \Bun"gee jump`\, Bungee jumping \Bun"gee jump`ing\, n. an act of derring-do in which a person jumps from a high platform, such as a bridge, attached (usually by the legs) to a bungee cord, which is set to a length that will halt the drop before the person reaches the surface of the earth or the water.
Wiktionary
bungee jump
n. An instance of bungee jumping. vb. (context intransitive English) to participate in bungee jumping