bun‧gee jump‧ing /ˈbʌndʒi ˌdʒʌmpɪŋ/ noun [uncountable]
a sport in which you jump off something very high with a long length of special rope that stretches tied to your legs, so that you go up again without touching the ground —bungee jump noun [countable] —bungee jumper noun [countable]
bungee jumping, bungy jumping /ˈbʌn.dʒiˌdʒʌm.pɪŋ/
noun [U]
the sport of jumping off a very high bridge or similar structure, with a long elastic rope tied to your legs, so that the rope pulls you back before you hit the ground.
[bʌ̱nʤi ʤʌmpɪŋ] N-UNCOUNT
If someone goes bungee jumping, they jump from a high place such as a bridge or cliff with a long piece of strong elastic cord tied around their ankle connecting them to the bridge or cliff.