Even a brief dive—a bungee jump, if you will—would be scary indeed.
Even more luckily, that bungee cord was short enough to keep it from crashing.
1930, "elastic rope;" used in late 19c. British schoolboy slang for "rubber eraser;" probably from notions of bouncy and spongy; first record of bungee jumping is from 1979.
: bungee cord/ bungee jump
Rubber; a rubber eraser (late 1800s+ British schoolboys)